Answer:
x^3 + 9x^3 -6x -54
Step-by-step explanation:
first step is you're going to simplify the problem.
using the (a-b)(a+b)=a^2-b^2 formula combine the last two grouped numbers to equal (x+9)(x^2-6)
multiply the parenthesis to get x^3 - 6x + 9x^2 -54
reorder the terms and then you get your answer! x^3 + 9x^3 -6x -54
does this make sense? :)
What is the question referring to?
Answer:
1. y = 2x - 1
Step-by-step explanation:
See attached image.
Answer: J) 28
Step-by-step explanation: Triangle interior angles equal 180°
Answer:
5
Step-by-step explanation:
I'm assuming the 2 was supposed to be "z" so if it was... just substitute z for 4
Giving you 9-4 which equals 5