Fix It Madison

Combine like terms and distribution

7 - 3 (4 - 2x) - 10x

7 - 3 (2x) - 10x

7 - 6x - 10x

7 - 16x

Where did the 4 go?

But why did the 4 go?

Explanation is in the file

cutt.ly/rzNrBcz

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.

4+4+2x

or

2x+8

step-by-step explanation: