Question

(5n-1)(n+1)=0 factory

Answer 1

5n^2+(4n)-1

Explanation:

(5n-1)(n+1)=0

Lets find n.

(5n-1)(n+1)=0

FOIL it.

5n^2+5n-1n-1

Add/Substract similar factors

5n^2+(5n-1n)-1

5n^2+(4n)-1

Thats your answer.