Can you factor x2 plus 11x plus 18?

Answer 1

x2 + 11x + 18

(x + 9)(x + 2)

CHECK:

x2 + 9x + 2x + 18

x2 + 11x + 18

SET EACH EQUAL TO ZERO:

x + 9 = 0

x = -9

x + 2 = 0

x = -2

NOW YOU ARE DONE:

Solution set: {-9, -2}