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You are not logged in. #1 20130307 08:20:55
Evaluate algebraic expressionHi Last edited by AlAllo (20130307 08:25:35) #2 20130307 08:41:19
Re: Evaluate algebraic expressionhi AlAllo Last edited by bob bundy (20130307 08:44:54) You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei #5 20130307 08:49:22
Re: Evaluate algebraic expressionhi muxdemux You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei #7 20130307 08:55:09
Re: Evaluate algebraic expressionI found this website http://www.myalgebra.com/algebra_solver.aspx #8 20130307 09:14:55
Re: Evaluate algebraic expressionI'm getting 86 with the algebra solver you linked. #9 20130307 09:15:23
Re: Evaluate algebraic expressionSorry muxdemux, I was wrong before. I do get the same as you. I didn't follow your working though. I'm glad you explained where it came from. Bob Last edited by bob bundy (20130307 09:27:13) You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei #10 20130307 09:26:41
Re: Evaluate algebraic expressionOk, I got the same answer as you but may you explain me something ? #11 20130307 09:29:12
Re: Evaluate algebraic expressionBecause minus 5 squared means multiply minus 5 by itself. ie. 5 x 5 = +25 are not the same thing. Bob You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei #12 20130307 09:36:18
Re: Evaluate algebraic expressionOk...That's weird, I thought that it needed to be specified by parentheses so we could include the minus signs. Oh well, thanks for your help. Neither the exercise or me got it ^^ #13 20130307 09:39:46
Re: Evaluate algebraic expressionYou are asked to evaluate c^2 (amongst other things of course ... but let's just concentrate on that bit) You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei #14 20130307 09:43:34
Re: Evaluate algebraic expression
Yes, It's ok. #15 20130307 09:45:51
Re: Evaluate algebraic expressionWe all need our foundations to be destabilized sometimes. You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei #16 20130307 09:47:38
Re: Evaluate algebraic expressionYes, even when it's hard to admit we were wrong. Curiously, are you people mathematicians or proffesors ? If If it's okay with you to answer ... #17 20130307 17:21:57
Re: Evaluate algebraic expression
Maybe... You might want to double check that you typed the equation properly in your original post. (Does your textbook really say ?)
I'm just some guy from Australia lol. I'm studying at university right now, but I'm definitely not a professor! I'm not even studying to become a mathematician. Though math is needed in a lot of different subjects. #18 20130307 19:11:42
Re: Evaluate algebraic expressionHi AlAllo
I am a retired teacher (of maths). In French the word 'professeur' means teacher.
You have a value for 'b' but it isn't used in the question. Maybe there should be a 'b' in it? You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei #19 20130308 02:49:31
Re: Evaluate algebraic expressionNah, there isn't any. The b was for other equations.. ^^ Thank you for your help, I love this forum.! 