Mark agreed to babysit his younger cousin every Wednesday for the same hourly rate. Last Wednesday, Mark made $38 for babysitting for 4 hours. What equation can be used to determine how much money, Mark will make for every hour, he babysits, so long as the hourly rate stays the same each time?

38 divided by 4

Step-by-step explanation:

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.