To write as a fraction with a common denominator, multiply by .

To write as a fraction with a common denominator, multiply by .

Multiply and .

Multiply and .

Reorder the factors of .

Combine the numerators over the common denominator.

Factor out of .

Factor out of .

Factor out of .

Apply the distributive property.

Multiply by .

Multiply by .

Add and .

Subtract from .

Factor out of .

Factor out of .

Factor out of .

Factor out of .

Multiply by .

Add (6z^2)/(3z-1)+(2z^2)/(3z+1)