Question

√X²-X-12 < X+2
gmnh caranya?

Answer 1

√x² - x - 12 < x + 2
x² - x - 12 < (x+2)²
x² - x - 12 < x² + 4x + 4
-12 - 4 < 4x + x
-16 < 5x
x > -16/5

Hp = {x | x > -16/5}