Answer:
The other binomial factor is (a+2).
Step-by-step explanation:
We have the expression , and we want to know the factors of this polynomial, then we have to factor the expression.
We can rewrite the expression:
Now we have a polynomial of four terms, then we can use grouping.
Part a:
We can see that both terms has in common, then we can apply common factor ,
Part b:
Both terms has 5 in common, then we can apply common factor 5,
Now, going back to the expression:
Then, factoring by grouping:
We obtain the binomial factor (a+5) and the other binomial factor is (a+2)