Choose the product of -3y2–4y + y -9). A. -7y5 – 3y - 27y2
B. 12y – 3y2 + 27y2
C. 12y - 3y2 + 12y2
D. 12y5 – 3y2 + 27y

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.

ummm seems that u didnt post the attachement !