Answer:
15.77
Step-by-step explanation:
Jonathan’s answer is reasonable because 2 times 8 is 16, and 16 is close to 15.77.
A
x² - 4x - 5 = 0
x² - 5x + x - 5 = 0
x(x - 5) + (x -5) = 0
(x - 5)(x + 1) = 0
x - 5 = 0 ; x + 1 = 0
x = 5 ; x = -1
