SOLUTION: can you please help me to sinplify: ( 5+2a+3a2)- (a2+a-6) x(4x2+3x-5)-2(4-x2) Evalute: x(x+1)(x-1)

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Question 88178This question is from textbook
: can you please help me to sinplify: ( 5+2a+3a2)- (a2+a-6)
x(4x2+3x-5)-2(4-x2)
Evalute: x(x+1)(x-1) This question is from textbook

Answer by SandySharma(35) About Me  (Show Source):
You can put this solution on YOUR website!
%28%285%2B2a%2B3a%5E2%29-+%28a%5E2%2Ba-6%29%29
%285%2B2a%2B3a%5E2+-+a%5E2-a%2B6%29
After simplification
%2811+%2B+a+%2B2a%5E2%29

Next problem:
%28x%284x%5E2%2B3x-5%29-2%284-x%5E2%29%29
%28%284x%5E3%2B3x%5E2-5x%29-%288-2x%5E2%29%29
%284x%5E3%2B3x%5E2-5x-8+%2B+2x%5E2%29
After simplification, you will get
%284x%5E3%2B5x%5E2-5x-8%29

Next problem:
Evalute: x(x+1)(x-1)
%28x%28x%2B1%29%28x-1%29%29
%28x%28x%5E2-1%29%29
%28x%5E3-x%29