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Multiply the polynomials (7y– 7) and (2y^2 – y + 6). Simplify the answer. Show your work.

 Sep 6, 2019

Best Answer 

 #1
avatar+195 
+1

(7y-7)(2y2-y+6) = (7y)(2y2-y+6)+(-7)(2y2-y+6)

Distrubute (2y2-y+6) acrost (7y-7)

 

(7y)(2y2)+(7y)(-y)+(7y)(6)+(-7)(2y2)+(-7)(-y)+(-7)(6)

Distribute (7y) and (-7)

 

14y3-7y2+42y-14y2+7y-42

Multiply, being careful with the negative signes and the powers of y

 

14y3-21y2+49y-42

Combine like terms to get the simplified answer

 Sep 6, 2019
 #1
avatar+195 
+1
Best Answer

(7y-7)(2y2-y+6) = (7y)(2y2-y+6)+(-7)(2y2-y+6)

Distrubute (2y2-y+6) acrost (7y-7)

 

(7y)(2y2)+(7y)(-y)+(7y)(6)+(-7)(2y2)+(-7)(-y)+(-7)(6)

Distribute (7y) and (-7)

 

14y3-7y2+42y-14y2+7y-42

Multiply, being careful with the negative signes and the powers of y

 

14y3-21y2+49y-42

Combine like terms to get the simplified answer

power27 Sep 6, 2019

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