In triangle ABC, D is the midpoint of BC, E is the midpoint of AB, P is a point on side AC such that AP : PC = 2:1 and Q is a point on AB such
that QC is parallel to EP.
What fraction of the area of triangle ABC is triangle QDP?

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.

2, 2, 2 or -4, 20, 29

step-by-step explanation:

there is two ways you can do it.