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#2 Re: Help Me ! » quadratic formula am i doing right? » 2014-05-29 12:16:23

saving page for future incase i make same mistake

i wont be so quick to blame book next time ><

#3 Re: Help Me ! » quadratic formula am i doing right? » 2014-05-29 12:06:20

oooo icicic all the other ones the denominator was just 2*1 so i got complacent, and numerator not sure why i put that there

phew what a relief thank you all ^^

#4 Help Me ! » quadratic formula am i doing right? » 2014-05-29 11:48:54

bronxsystem
Replies: 10

Hey im not sure why i get the wrong answer =/ appreciate any advice.

I get x = 2, -5

but the book says x = 2, 1/2


i got everything else right in this section of book but cant figure this one out. The book does say y= not x= which makes me wonder if its a mistake.

#5 Re: Help Me ! » basic equation help super easy » 2014-01-26 10:38:43

thank you makes sense i was completely stuck

#6 Help Me ! » basic equation help super easy » 2014-01-26 10:14:55

bronxsystem
Replies: 3

hey all i dont know what im missing here ):

i thought we first square everything

then subtract 2

then divide by 4

but i get wrong answer. what did i do wrong ><

#7 Re: Help Me ! » mixed fraction » 2014-01-21 05:40:01

the answer in book was in line with the typo

but thank you (: i will save this thread and review the problem assuming it was a2 and try work it out using your working (:

thanks thanks thanks

#8 Re: Help Me ! » mixed fraction » 2014-01-21 05:15:41

02ae3b4a9ee3cfd8f0c854b534769eba.png

im sure its a typo because the 2 is after the a which does not conform with previous exercises.

i spent 2 hours on this :*( 2 hours 20 minutes

thanks all for help and very sorry for wasting everyones time.

#9 Re: Help Me ! » mixed fraction » 2014-01-21 05:09:15

in the book it doesnt have the exponent it just says a2 but maybe its typo? omg >< i will retry

#10 Re: Help Me ! » mixed fraction » 2014-01-21 04:30:04

from the last one? 1+a/a * a2/1-a2

multiply both by a?

#11 Help Me ! » mixed fraction » 2014-01-21 04:16:44

bronxsystem
Replies: 14

Hey all

I can do most of these but cant get past this one for some reason.

=




but i get stuck here S: is this totally wrong?

with the other problems i was able to factor them then cancel out. But this one i keep getting to this point and get confused

#12 Re: Help Me ! » simplifying square root basic one » 2014-01-18 06:02:47

yes

really the appreciate help on forum thanks all.

#14 Re: Help Me ! » simplifying square root basic one » 2014-01-17 09:36:14

baah sorry guys i know i cant keep posting same thing clogs up thread.

but really hit a wall here.
i got the hang of easy ones but the book throws in different ones without explaining ><

i know i have to some how extract the 9 so that it is same term as the other one.

but cant work out how.

following what phrontister said in post #4

i would square the 2 to make it a 4 then times that by 9 and get 36  is that the first step?

im probably just clicking buttons here but

if above true its written


am i able to write this as

if thats right it makes sense or is it just gorilla math

#15 Re: Help Me ! » simplifying square root basic one » 2014-01-16 18:58:18

i got the hang of it now i can get the answers (:

97ac3d75773a179d1290c98902c95012.png

#17 Re: Help Me ! » simplifying square root basic one » 2014-01-15 19:30:32

thank you

i sort of understand, enough to do the exercises now but not really comfortable with it.

i will redo the chapter and reread these posts (:

thanks again

#18 Re: Help Me ! » simplifying square root basic one » 2014-01-15 10:13:46

i think i sort of understand

its because its an unknown right?
like b*b*b = b^3

b^2 * b

and we can write it as

because being unknown doesnt say how many times to do it >< my explanation is terrible but its close right?

#19 Help Me ! » simplifying square root basic one » 2014-01-15 10:00:41

bronxsystem
Replies: 13

hey all im trying to learn how to simplify square roots but can only do numbered ones ><

i can do these ones i think


this one i dont understand ><

is that right S: but book says its wrong.

#21 Re: Help Me ! » square root of irrational number » 2014-01-14 05:00:17

phew lol my brain was going to explode like trying to squeeze a triangle into a circle hole.

thanks for the link but any chance you can take a glance at this method
http://mathforum.org/library/drmath/view/52610.html

it seems simple and i got the hang of it pretty quickly

i will go through the link you sent now thank you very much

EDIT : both seem really similar ^^

#22 Help Me ! » square root of irrational number » 2014-01-14 04:25:23

bronxsystem
Replies: 5

im so lost. I have been staring at this page for over an hour.

im stuck on step 3

b1a0b970bdb31e8f4770508d25879ee0.png

i need to find the square root of 23749.98

#step 1 first we write it in pairs starting left from decimal point and to the right of decimal point easy
#step 2 then find a perfect square of 2 and book says only 1 is smaller so i place the 1 above and below radical (not sure if right word)

STEP #3  next i thought we had to see how many times 2 would go into the first two digits of the new radicand 1 37 ?? so 2 goes into 13 = 6 times why is this book saying 5 times arghh i dont get it >< plz aware me

#24 Help Me ! » quick question exponents » 2014-01-13 01:03:26

bronxsystem
Replies: 3

but not sure answer for

is answer is 1 right?

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