What is the solution to the system of equations?

y =1/3 x – 10

2x + y = 4

(–8, 6)
(–6, 16)
(6, –8)
(16, –6)

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.

$5.41

step-by-step explanation:

$20 - $14.51 = $5.49.