Question

x2 – x = 2

a) x = -1, x = -2
b) x = -2, x = 1
c) x = 2, x = -1
d) x = 1, x = 2

Answer 1

x(x-1)=2

Answer 2

c) x = 2, x = -1

Answer 3

x^2-x-2=0
(x-2)(x+1)=0
x=2 and x=-1 are the solution

Answer 4

thanks!