You can complete 1/6 of your task in an hour. Your friend can complete 1/6 as the same task in an hour how long will it take to complete a task if you work together?

If you and you friend both can complete 1/6 of a task alone, you have to add 1/6+1/6 to find how fast you can work together. That comes out as 2/6 or 1/3 if you reduce. so It will take 3 hours for you to complete a task because 1/3+1/3+1/3=1

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.

-7/8

step-by-step explanation:

instead of subtracting you add the -6/8 and -1/8