Answer:
3) 4 and -7
Step-by-step explanation:
The given quadratic equation is
x² - 3x - 28 = 0
This can be factored into
(x - 7)(x + 4) = 0
This implies
x + 4 = 0
or
x - 7 = 0
x + 4 = 0 gives x = -4
x + 7 = 0 gives x = -7
So solutions are
x = 4, x = -7
