Question

How do you evaluate `\frac { 56( w - 4) ( 2w + 5) } { 7( 2w + 3) ( w - 4) }`?

Answer 1

`((2w+5))/((2w+3))`

Explanation:

We cannot evaluate the expression unless we know a value for `w`, but we can simplify as far as possible.

Cancel any like factors:

`(cancel56^8(cancel((w-4))(2w+5)))/(cancel7(2w+3)(cancel(w-4)))`

`=((2w+5))/((2w+3))`

['Evaluate means to find a numerical value for an expression,' - a number answer]