Question

A rectangle has a height of 4 and width of 2x2-x

Answer 1

The area of rectangle is (8x² - 4x) units² .

Explanation:

Given that the area of rectangle formula is A = length×breadth. Then substitute the following expressions into the formula :

`area = length * breadth`

Let length = width = 2x² - x,

Let breadth = height = 4,

`area = (2{x}^(2) - x) * (4)`

`area = 4(2 {x}^(2) ) - 4(x)`

`area =( 8 {x}^(2) - 4x) \: \: {units}^(2)`