Question

(x-2)(x+1)=3x-4
solve

Answer 1

x^2 + x - 2x - 2 = 3x - 4
x^2 - x - 2 = 3x - 4
x^2 - x - 3x - 2 + 4 = 0
x^2 - 4x + 2 = 0 ;
is the quadratic formula ;
a = 1 ; b = -4 ; c = + 2 ;
The solutions are ( - 1 +
`2 √(3)`) / 2 and ( - 1 -
`2 √(3)`) / 2 ;