Question

Answer 1

1.

a, (x+1)(\(x^2\)-x+1)-(\(x^3\)-8)

= ( \(x^3\)+1) - \(x^3\)+8

=\(x^3\)+1-\(x^3\)+8

=1+8

=9

Answer 2

b, (x-2)(\(x^2\)+2x+4) -(\(x^3\)-8)

=(\(x^3\)-8)-(\(x^3\)-8)

=\(x^3\)-8-(\(x^3\)-8)

=\(x^3\)-8-\(x^3\)+8

=0

Answer 3

c: \(=x^3+2x^2+4x+x^2+2x+4-x^3+16\)

\(=3x^2+6x+20\)

d: \(=x^2-25-x^2+2x-3=2x-28\)

e: \(=4x^2-9-4x^2-4x-1=-4x-10\)