Answer:
(x+7) / (x–3)
Explanation:
(x^2+3x-28) / (x^2-7x+12 )
(x^2 + 7x – 4x – 28) / (x^2 – 4x - 3x + 12)
= [x(x+7) – 4(x+7)] / [x(x-4) – 3(x-4)]
= (x+7) (x-4) / (x-4) (x-3)
= (x+7) / (x–3)
Simplify means to reduce the size of any number. In this factorization math, we have to simplify those factors, and then divide (x-4) from both denominator and numerator to simplify the result.