Answer:
Assuming "x2" is x squared:
5x(x2-4x+2)
(5x(x2)+5x(-4x)+5x(2))
<u>5x^3-20x+10x</u>
For these polynomial multiplication problems, just distribute the number outside the parentheses.
It would be 0.06 so 6 cents
to find remaining rooms 91-52=39
turn into a fraction =39/91
answer=39/91