4x^2-81y^2? can you show me the steps in factoring/simplifying this equation? you so much. ( make sure the steps and the answer and detailed and clear with any necessary formulas)

The diagonals of a quadrilaretral intersect at (-1,4). one of the sides of the quadrilateral is bounded by (2,7) and (-3,5) determine the coordinates of the other side in order for the quadrilaretral to be a square.

If $740 is invested at an interest rate of 11% per year and is compounded continuously, how much will the investment be worth in 7 years? use the continuous compound interest formula a = pert.

What is the value of the expression i 0 × i 1 × i 2 × i 3 × i 4? 1 –1 i –i