Question

solve 5x2 -22x-15=0 by factorization method​

Answer 1

by solving 5x2 -22x-15=0 by factorization method we get

(5x+3),(x-5)

Answer 2

5x²- ( 25 - 3) x -15=0

5x²- 25x + 3x - 15 =0

5x ( x - 5 ) + 3 ( x - 5)=0

(x -5) ( 5x +3)=0

either,

x-5 =0

x=5

or ,

5x + 3=0

5x = - 3

x= -3/5

x = 5, -3/5