Answer:
-13, 8
Step-by-step explanation:
(x-3)(x+8) = 80
use FOIL to eliminate parenthesis
x² +8x - 3x - 24 = 80
combine like terms
x² + 5x - 24 = 80
move the constant to the left
x² + 5x - 104 = 0
factor x and then factor -8
x(x+13) - 8(x+13) = 0 factor (x+13)
(x+13)(x-8) = 0
separate into possible cases
x + 13 = 0
x - 8 = 0
solve
x = -13
x = 8
have a lovely day <3
