Question

N2 +21n + 20 factor​

Answer 1

(n + 1)(n + 20).

Explanation:

n^2 + 21n + 20

we need 2 numbers whose sum id 21 and whose product is 20 .

They are +1 and + 20. So the factors are:

(n + 1)(n + 20).

Answer 2

(x+1)(x+20)

Explanation:

1) find two factors of 20 that sum up to 21.

2) 1 and 20 are two facts of 20 that sum up to 21.