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2
avatar+57 

the expression 

 

3(x2 + 2x -3 - 4(4x2 - 7x +5  is equivilent to

 

a) -13x - 22x + 11

b) -13x2 + 34x - 29

c) 19x2 -22x + 11

d) 19x2  + 34x - 29

 Sep 16, 2019
 #1
avatar+104876 
+2

3(x^2 + 2x -3) - 4(4x^2 - 7x +5)  =

 

3x^2  + 6x - 9    -  16x^2 + 28x  -20  =

 

-13x^2 + 34x - 29

 

 

 

cool cool cool

 Sep 16, 2019
 #2
avatar+57 
0

thank you for helping.

 Sep 18, 2019

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