Question

A rectangular garden has a walk around it of width x. the garden is 18 ft by 13 ft. write a function representing the combined area, a(x), of the garden and walk. write as a polynomial in standard form.

Answer 1

a(x) = (18 +2x)*(13 +2x) . . . . . . .the form suggested by the problem statement

a(x) = 4x^2 +62x +234 . . . . . . in standard form