If you sort out the fractions better I can for sure help:)) I just need to know every fraction it’s hard to tell by what you wrote:))
Answer: x=7, GA=MR=14
Step-by-step explanation:
x³ + 2x² - x - 2 < 0
x³ - x + 2x² - 2 < 0
x(x² - 1) - 2(x² - 1) < 0
(x - 2)(x² - 1) < 0
(x - 2)(x - 1)(x + 1) < 0
by chacking we get the solution
x ∈ (-∞,-1) ∪ (-1,1)
