Question

I need help so I can finish my algebra hw

Answer 1

None of those are correct. the answer would be $3 x^{2} -24x+36=180$.

you can draw a picture of the garden space, where x is the width of the space, 3x is the length. to account for the 3 inch border you need to subtract 3 from both ends, so the width of his garden is then x-6, and the length is 3x-6.

multiplying these together, which is the formula for area, gets you $3 x^{2} -24x+36=180$.