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Topic review (newest first)

bob bundy
2013-09-05 16:53:37

hi Nina1784

Welcome to the forum.

I'm trying to find a method the would help me find the base numbers

I suspect this work is leading up to quadratics and the quadratic formula **.

That formula does provide a guaranteed method for finding the two numbers but it may be easier just to look for answers like this:

Write down all the factor pairs for the product number (c = 14 in your example) and then try them to see if any add to make the sum ( b = 15)

So 14 = 14 x 1 or 7 x 2.  You can quickly see that the first pair works (14 + 1 = 15)

If you get any that you cannot solve, post them here and we'll help some more.

** I'll tell you this if you want.  smile

Bob

Agnishom
2013-09-05 15:07:48

Welcome.

You will need these a lot when you learn middle term factorisation

Nina1784
2013-09-05 15:00:26

OMG ... when i seen the answer I felt stupid... I know that i have to list the numbers of what it could be until i find both numbers that match... i guess i really need to work on my multiplication. Thank you Agnishom

Agnishom
2013-09-05 14:47:17

Of course the answer is 14 and 1 smile

Nina1784
2013-09-05 14:36:27

The example that i have given is similar to the worksheet.
The two questions mark are were the base numbers should be. so i have to find what to base numbers equal the product of x14 and the sum of +15. but the base numbers have to be the same like 2x12 =24, 2+12=14 So what im asking is how do i find the base numbers? 
Im trying to explain the best i can... thank you for your help

bobbym
2013-09-05 14:10:33

Hi;

This is what it looks like on my browser, I do not understand what you need. Please provide a better explanation.

Nina1784
2013-09-05 14:01:14

I was give a worksheet... And I need to find the base numbers from the product of 14 and the sum of 15. the base numbers have to be the same and equal to the product and sum given. I'm trying to find a method the would help me find the base numbers. please help i have eleven questions that need answers.


example :      X14
                 _?_      _?_
                      +15


big_smile

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