Ingrid walked her dog and washed her car. the time she spent walking her dog was one fourth the time it took her to wash her car. it took ingrid 14 minutes to walk the dog. how long did it take ingrid to wash her car

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.

c 1 hour

step-by-step explanation:

m = 2e

m = 2 so 2 = 2e

1 = e