Question

Generating Equivalent Expressions : simplify

Z³ + 5(z + 3) + 4(2-z²)
Note: just simplify it, don't answer

Answer 1

Expand

z^3 + 5z + 15 + 8 - 4z^2

Collect like terms

z^3 + 5z + (15 + 8) - 4z^2

Simplify

z^3 + 5z + 23 - 4z^2