Answer:
(x+1)(3x^3+2x^2-4x+4)
Step-by-step explanation:
I hope this helps!
So the triangle adds up to 180
B. 66
Substitute x = 3
Multiply in the parentheses
(6 + 192) Add
(198) Multiply
66
Steps to solve:
x - 1 ≥ 8
~Add 1 to both sides
x - 1 + 1 ≥ 8 + 1
~Simplify
x ≥ 9
Best of Luck!