Question

What is the solution to x 3 + x 2 ≤ 10x – 8?

Answer 1

Solution: x ⩾ \frac{8}{5}

Explanation:

x 3 + x 2 ≤ 10x – 8

Reorder the terms

3x + 2x ≤ 10x - 8

Collect like terms

5x ≤ 10x - 8

Move the variable to the left

5x -10x ≤ -8

Collect like terms

-5x ≤ - 8

Divide both sides

x ⩾ \frac{8}{5}

Answer 2

D

Explanation: