Question

How do you simplify `\frac { ( 7x - 9) ( x + 4) } { ( x + 4) ( 4x + 5) }`?

Answer 1

See the solution process below:

Explanation:

Cancel the common terms in the numerator and denominator:

`((7x - 9)color(red)(cancel(color(black)((x + 4)))))/(color(red)(cancel(color(black)((x + 4))))(4x + 5)) = (7x - 9)/(4x + 5)`