Question

An artist wants to frame a square painting with an area of 400 square inches . she wants

Answer 1

(a)
`x^(2)` = 400
(b)
`√(x^2) = √(400)`

`x=20,-20`
(c) Only the positive solution makes sense because you cannot have a negative side length.
(d) Since one side of the painting is 20 inches, all four sides together will be 20*4 = 80 inches