Working together, two ants named Aran and Beatrice can build an ant hill in 10 hours. Aran and Charlie can build the ant hill in 12 hours. Beatrice
and Charlie can build the ant hill in 15 hours. How long, in hours, will it
take to build the ant hill if Aran, Beatrice, and Charlie work together?

PLS I NEED THIS ASA I WILL GIVE BRAINLIEST TO WHOEVER ANSWERS CORRECT!!

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.

what is the model?

step-by-step explanation: