Which expression is equivalent to 20 + 12? A.

5(4 + 3)

B.

4(5 + 4)

C.

4(5 + 3)

D.

2(10 + 5)

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.

the answer would be 44.79

plz mark brainliest

step-by-step explanation: