Question

Answer 1

a: =2x^3-3x-5x^3-x^2+x^2

=-3x^3-3x

b: \(=x^3+15x^2+75x+125+x^3-15x^2+75x-125-2x\left(x^2-25\right)\)

\(=2x^3+150x-2x^3+50x\)

=200x

c: \(=\left(2^4-1\right)\left(2^4+1\right)\left(2^8+1\right)\left(2^{16}+1\right)\)

=(2^8-1)(2^8+1)(2^16+1)

=(2^16-1)(2^16+1)

=2^32-1

d: =x^3-1-x^3-1=-2