Question

The area of a rectangular patio is 3x2 + 17x + 20 ft2.

Which of the following could bedimensions of the patio?

A. x + 5 ft by 3x + 4 ft
B. 3x + 5 ft by x + 4 ft
C. x + 5 ft by x + 4 ft
D. 3x + 5 ft by 3x + 4 ft

Answer 1

b

Explanation:

Answer 2

`3x^2+17x+20\\` Your equation

`\left(3x^2+5x\right)+\left(12x+20\right)` Simplify out the 17

`x\left(3x+5\right)+4\left(3x+5\right)` Find the common number

`\left(3x+5\right)\left(x+4\right)` These are your two answers

Your answer is B.