Question

Sam decides to build a square garden. If the area of the garden is 4x2 − 20x + 25 square feet, what is the length of one side of the garden?

Answer 1

factorise the quadratic

4x^2 - 20x + 25

(2x - 5)^2

then the garden has side lengths of 2x - 5

Answer 2

\[A=s^2\]
\[A=(2x-5)(2x+5)\]

Answer 3

thank you