Question

What is the fully some fun expression for the area of a rectangle with X minus one in height X -3 and length

Answer 1

A = x² - 4x + 3

Explanation:

the area (A) of a rectangle is calculated as

A = length × height

= (x - 3)(x - 1) ← expand using FOIL

= x² - x - 3x + 3 ← collect like terms

= x² - 4x + 3