Asked by Dylan

A carpenter is putting a skylight in a roof. If the roof measures 10x + 9 by 7x + 7 and the skylight measures x + 5 by 3x + 3, what is the area of the remaining roof after the skylight is built?

A.) 67x^2 + 115x + 48**
B.) 73x^2 + 151x + 78
C.) 70x^2 + 133x + 63
Answered by bobpursley
remaining area: roof-skylight
= (10x+9)(7x+7)- (x+5)(3x+3)

you need to multiply these out, but there is a shortcut here: just do the x^2 terms
= 70x^2 + ...-3x^2= 67x^2 + .....
you are correct.
Answered by Dylan
Thank you.
Answered by Shankale
A IS THE ANSWER, I just took the test
67x^2…. Is the answer
Answered by Guy from 2025
still correct pogchamp is now illegal dont call the cops on me for saying it pls
Answered by ♥𝕤𝕥𝕣𝕒𝕨𝕓𝕖𝕣𝕣𝕪 𝕓𝕒𝕓𝕪♥
still correct <3
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