Expand x^2 ( x - y)

pwease help me ​

On a piece of paper graph f(x)=5•(0.4)^x

The estimated number of people to attend the last bengals game of the season was 2000. the actual number of fans attending was 1200. by what percent did the estimate differ from the actual?

Find the value of p for which the polynomial 3x^3 -x^2 + px +1 is exactly divisible by x-1, hence factorise the polynomial