Giải phương trình sau

Question

(x- 1). (2x – 3) – 2x2 = 0

Answer 1

(x-1)(2x-3)-2x^2=0

2x^2-3x-2x+3-2x^2=0

-5x+3=0

x=3/5

 

Answer 2

(x-1)(2x-3)-2x^2=0
<=>2x^2-3x-2x+3-2x^2=0
<=>-5x+3 =0
<=>-5x = -3
<=> x = -3 : -5
<=> x = 0,6