-5x + 5 ≥ 160 − 10x ?

x≥31

Step-by-step explanation:

-5x + 5 ≥ 160 - 10x

Add 10x on both sides and subtract 5 from both sides

5x ≥ 155

Divide both sides by 5

x ≥ 31

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

34

step-by-step explanation: