Question

4. Simplify: (-z-2w2)(z-2)-1

Answer 1

-z⁻⁵w²

Explanation:

(-z⁻²w²){(z⁻²)⁻¹}

simplify each first

{(z⁻²)⁻¹} = z⁻²⁻¹ = z⁻³

(-z⁻²w²) z⁻³

-z⁻² z⁻³ w²)

-z⁻²⁺⁽⁻³⁾w²

-z⁻²⁻³w²

-z⁻⁵w²