Try another version of this question
Simplify the following expression:
Start by factoring both the numerator and the denominator of the expression. Look for factors that are common in both the numerator and the denominator, as these can be cancelled out to simplify the expression
Box 1: Enter your answer as an expression. Example: 3x^2+1, x/5, (a+b)/c
Be sure your variables match those in the question
(x-7)(x-2)x(x-2)(x+4)=x-7x(x+4)