X + 2x + x + 10 = 90
4x = 80
x = 20
Answer:
(3x^2 + 2)(x + 4).
Step-by-step explanation:
3x3 + 12x2 + 2x + 8
3x^2(x + 4) + 2(x + 4) The x + 4 is common to the 2 groups so we have:
(3x^2 + 2)(x + 4).
Answer:
C
Step-by-step explanation:
C is not a function because 5 has two y values
