Easy
lets say
(x)(x+3)(x+1)
multiply out
x^3+4x^2+3x
ok so factor out x firs
x(x^2+4x+3)
factour inside
x(x+3)(x+1)
You have to do like draw a number line and do the opposite and you'll get your answer and add them together and you'll get 45.5
perimeter =48
18+18+6+6=48
x-12=x/3
Multiply both sides by 3
3x-36=x
3x=x+36
2x=36
x=18
18-12=18/3
6=6
One side 18 another side 6
19 chairs.
650-176 is 474 and 474 divided by 25 is 18.96 so round up and 19 or 18 per row
