Question

If x2 + 16x + 63 = (x + m)(x + n), then m + n = 16.

is it true​

Answer 1

Answer:

yes it is true

Step-by-step explanation:

x^2 +16x+63

x^2 +7x+9x+63

x(x+7)+9(x+7)

(x+7)(x+9)

m=7 n =9

m+n=7+9=16