Question

x^2+20ix+21 solve by factorization method​

Answer 1

x^2+21x-x+21

x(x+21)+1(x+21)

(x+1)(x+21).

Answer 2

Answer:

(x+21) (x-1)

Step-by-step explanation:

x^2+20x+21

x^2+21x-x+21

x(x+21)-1(x+21)

(x-1) (x+21)