Question

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?

Answer 1

plz also could you show the steps

Answer 2

So first you need to find the are of the roof.

Answer 3

(10x+9)(7x+7)

Answer 4

Do yo know how to do FOIL?

Answer 5

not really

Answer 6

Mmm..okay. Give me 2 mins! I will just be right back! And I will explain FOIL

Answer 7

ok

Answer 8

First
Outer
Inner
Last

Answer 9

http://www.youtube.com/watch?v=8h_lHZgVq_8
Check out this link and tell me if you understand foil now

Answer 10

thx for your help

Answer 11

:)

Answer 12

Do you know how to solve the rest of the problem?

Answer 13

im working on it right now

Answer 14

ah ok, tell me if you need anything else!