I need help with this question

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.

Find the condition that the zeros of the polynomial f(x) = x^3+3px^2+3px+r may be in a.p.

Written as a simplified polynomial in standard form, what is the result when (2x+8)^2(2x+8) 2 is subtracted from 8x^2-38x 2 −3?