Rewrite as .

Rewrite as .

Since both terms are perfect squares, factor using the difference of squares formula, where and .

Factor out of .

Rewrite as .

Factor out of .

Rewrite as .

Reorder terms.

Cancel the common factor.

Divide by .

Apply the distributive property.

Multiply by .

Multiply by .

Divide (16x^2-25)/(5-4x)