Question

[7.07] 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 - 2.

Select one:
a. 16x2 − 4
b. 64x2 + 4
c. 64x2 - 16x + 4
d. 64x2 - 32x + 4

Answer 1

@johnweldon1993

Answer 2

Well it is a square...

The area of a square would be the length times the width....and we know squares have 4 equal sides...so if 1 side = 8x - 2

Then the area would be

\[\large (8x - 2)(8x - 2)\]

So distribute this out...

\[\large 64x^2 - 16x - 16x + 4\]

\[\large 64x^2 - 32x +4 \] would be your answer!