Question

if x+3 is a factor of x^2+5a+6a, then the value of a is​

Answer 1

Step-by-step explanation:

x + 3 = 0

x = -3

x² + 5a + 6a = 0

x² + 11a = 0

-3² + 11a = 0

9 + 11a = 0

11a = -9

a = -9 / 11