Find the values of m and n if the following expressions are perfect sqaures x4 − 8x3 + mx2 + nx + 16

Find the values of m and n if the following expressions are perfect sqaures $x^{4} - 8 x^{3} + m x^{2} + n x + 16$

Matching exercise

Match the items on the right to the items on the left.

Step - 1

Step - 2

Step - 3