Question

Which expression is equivalent to the area of metal sheet required to make this square-shaped traffic sign? 4x + 3 (is presented next to a square street sign)
A. 16x2 + 12x + 9
B. 16x2 + 24x + 9
C. 8x2 + 9
D. 8x2 + 6

Answer 1

Ans: The correct Option is (B) 16x^2 + 24x + 9

Explanation:

Since,

Area = $y^2$

Where
y = 4x+3

So
Area = $(4x+3)^2$
Area = 16x^2 + 24x + 9