Question

जेड स्क्वायर माइनस बी माइनस टू​

Answer 1

Answer:

z=-1,2

Step-by-step explanation:

by using middle term splitting method

z²-z-2=0

z²-(2z-z)-2=0

z²-2z+z-2=0

z(z-2)+1(z-2)=0

(z+1)(z-2)=0

z+1=0 ; z-2=0

z=-1 ; z= 2