Question

Simplify and verify (m^2-10+25)(m-5),m=-2

Answer 1

$( {m}^{2} - 10 + 25)(m - 5) \\ \\ { (- 2)}^{2} - 10 + 25( - 2 + 5) \\ \\ 4 - 10 + 25(3) \\ \\ 12 - 30 + 75 \\ 87 - 10 = 77$