Question

Find the area. Simplify your answer.

Answer 1

a=x^2-7x

Explanation:

a=1/2bh

a=1/2(x-7)(2x)

a=1/2(2x^2-14x)

a=x^2-7x

Answer 2

area = x² - 7x

Explanation:

The area (A) of a triangle is calculated as

A =
`(1)/(2)` bh ( b is the base and h the perpendicular height )

Here b = 2x and h = x - 7 , thus

A =
`(1)/(2)` × 2x(x - 7) = x(x - 7) = x² - 7x