Question

Solve the polynomial inequality. Express the solution set in interval notation.
x^2 - 4x - 12 ≤ 0

A. [6, ∞)
B. (-∞, -2]
C. (-∞, -2] [6, ∞)
D. [-2, 6]

Answer 1

first find critical points by solving
x^2 - 4x - 12 = 0

Answer 2

6

Answer 3

can u do that? this function will factorize

Answer 4

yes 6 is one solution but there is another

Answer 5

thank you

Answer 6

yw