It takes harland 15 minutes to rake all leaves in the front yard. if trudy scatters the leaves while harland rakes, it takes him 20 minutes to rake the leaves. how many minutes does it take trudy to scatter all the leaves?

33

step-by-step explanation: g=6

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.