Answer:
x(x+y+3)(x+y-3)
Step-by-step explanation:
x³+2x²y+xy²-9x
= x((x²+2xy+y²)-3²)
= x((x+y)² - 3²)
= x(x+y+3)(x+y-3)
<u>Comment</u>
If I don't know what was before the comma in M(, –1) I can't solve this
First we have to find the perimeter. Which is for rectangles 2(l+w)
that means the perimeter is 75.84 ft
each slat is apparently half a foot which would be 0.5ft
then you simply divide 0.5 from 75.84 and round it to the nearest whole number.
Would it be 18 if it’s not 12? I’m sorry i don’t know but i’m trying to help as much as possible
