Question

Can someone help me please

Answer 1

A = 2x² + x - 45

Explanation:

The area (A) of a rectangle is calculated as

A = length × breadth , thus

A = (2x - 9)(x + 5) ← expand using FOIL

= 2x² + 10x - 9x - 45 ← collect like terms

= 2x² + x - 45