i don't understand this and I need your help, PLEASE

Answer:
Step-by-step explanation:
x(x + 3) - 5(x + 3)
Since the express have same common factor (x + 3)
so answer : (x + 3)(x - 5)
Answer: your answer is (x+3)x(x-5)
Step-by-step explanation:
you factor out x+3 from the expression