Question

factorize x3-x2-22x+40​

Answer 1

Answer:

3x-24x+40 = 0

-21x = -40

x=40/21

Answer 2

Answer:

1.2 Factoring: x3+x2-22x-40

Thoughtfully split the expression at hand into groups, each group having two terms :

Group 1: -22x-40

Group 2: x3+x2

Pull out from each group separately :

Group 1: (11x+20) • (-2)

Group 2: (x+1) • (x2)