Solve

(9v + 4) / 6v.

Step-by-step explanation:

6/4 + 4/6v

The LCD of 4 and 6v is  12v.

6/4 + 4/6v

=  (6* 3v + 8) / 12v

= (18v + 8)/12v

= 2(9v + 4) / 12v

= (9v + 4) / 6v.

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.