Question 88178
{{{((5+2a+3a^2)- (a^2+a-6))}}}

{{{(5+2a+3a^2 - a^2-a+6)}}}

After simplification

{{{(11 + a +2a^2)}}}


Next problem:

{{{(x(4x^2+3x-5)-2(4-x^2))}}}

{{{((4x^3+3x^2-5x)-(8-2x^2))}}}

{{{(4x^3+3x^2-5x-8 + 2x^2)}}}

After simplification, you will get

{{{(4x^3+5x^2-5x-8)}}}


Next problem:

Evalute: x(x+1)(x-1)

{{{(x(x+1)(x-1))}}}

{{{(x(x^2-1))}}}

{{{(x^3-x)}}}