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avatar+44 

Find the sum

(2x^2+5x-7)+(3-4x^2+6x)

 

A. -2x^2+11x-4
B. 2x^2+5x-7

C. 2x^2+3x+1

D. -2x^2-11x-4

 Dec 16, 2020

Best Answer 

 #1
avatar
+2

Just gather the 'like ' terms   (or 'alike' terms)

 

2x^2 - 4x^2     +      5x + 6x     +    -7+3

     -2x2              +         11x               - 4

 Dec 16, 2020
 #1
avatar
+2
Best Answer

Just gather the 'like ' terms   (or 'alike' terms)

 

2x^2 - 4x^2     +      5x + 6x     +    -7+3

     -2x2              +         11x               - 4

Guest Dec 16, 2020
 #2
avatar+114221 
+2

Rewrite the second polynomial as

-4x^2 + 6x  + 3

 

So we have

 

2x^2  + 5x  - 7

-4x^2 + 6x + 3

____________

 

Can you finish it  ????

 

cool cool cool

 Dec 16, 2020

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