Answer:
-3 and -2
Step-by-step explanation:
7x² + 19x + 21 = 4x² + 4x + 3
combine like terms:
3x² + 15x + 18 = 0
3(x² + 5x + 6) = 0
(x + 3)(x + 2) = 0
x = -3
x = -2
Answer:
B
Step-by-step explanation:

The vertex of f(x)=-x2+4x-8 is (2, -4)
Answer:
3 or 1
Step-by-step explanation:
Answer:
i!^dkk
Step-by-step explanation:
more than