Question

Which expression is equivalent to the area of metal sheet required to make this square-shaped traffic sign?

A square shaped traffic sign is shown with length of one side labeled as 8x minus 2.


16x2 − 4
64x2 + 4
64x2 − 16x + 4
64x2 − 32x + 4

Answer 1

64x^2 − 32x + 4

Explanation:

i took the test

Answer 2

Area (A)= length(L) x width(w)
In a square, length = width

A = (8x - 2)²
= (8x-2)(8x-2)
= 64x² - 16x - 16x + 4
= 64x² - 32x + 4

Answer: D