Question

Решите
1)m^2-n^2-8m+16


2) 7^2-9+3-z

Answer 1

1)m^2-n^2-8m+16=2(m^-n^-4m+8) 2)7^2-9+3-z=49*2-9+3-z=98-9+3-z=92-z