Need before 6: 30pm i have to show my work

1. y=-5x-4

2. y=-3/2x+2

3. y=-12x+8

Step-by-step explanation:

1. subtract 5x from both sides to get y=-5x-4

2. subtract 9x from both sides to get 6y=-9x+12. Then divide everything by 6 to get y=-3/2x+2

3. subtract 3x from both sides to get 1/4y=-3x+2. Then divide everything by 1/4 to get y=-12x+8

I hope that this helps!

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.