The area of a garden is (6x^2-x-2) square yards. Find the dimensions of the garden if x=5.

Question

I am having trouble with this equation and have been stuck on it for an hour. This is due tomorrow and need an answer right now. It is asking for the length and width of the garden which is a square. The area is given and I don't know what the x=5 is for. Please help if you understand! Thank you!!

Answer 1

Substitute x=5 into the expression for area.

A = 6(5²) - 5 - 2 = 143 sq yards

The area of a square is s², where s is the length of each side.

s² = 143

Take the square root of 143 to find the value of s

s = 11.96 yards

The length and width of a square are equal

length = 11.96 yards

width = 11.96 yards