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Ok so I'm struggling with these two expressions....

The question is:

Simplify each of the following expressions by collecting like terms

A) 5w + 7w - 10w

B) 7x2 + 4x - x2 - 4x

HELP! 

 Nov 9, 2015

Best Answer 

 #1
avatar
+5

Well, they just basically want you to do the math....

 

soooo the SECOND one will look like this (you should be able to do the first one after seeing this )

 

7x^2  + 4x - x^2 -4x

(7x^2  - x^2) + (4x - 4x)

6x^2 + 0  =  6x^2               Do you see how it works?   Can you do the firs one now? it is easier.....

 Nov 9, 2015
 #1
avatar
+5
Best Answer

Well, they just basically want you to do the math....

 

soooo the SECOND one will look like this (you should be able to do the first one after seeing this )

 

7x^2  + 4x - x^2 -4x

(7x^2  - x^2) + (4x - 4x)

6x^2 + 0  =  6x^2               Do you see how it works?   Can you do the firs one now? it is easier.....

Guest Nov 9, 2015
 #2
avatar
+5

Thanks heaps, I get it now. laugh

 Nov 9, 2015

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