(1)2x^2+3=5x (2)4x^2-7x+2=0

问题描述:

(1)2x^2+3=5x (2)4x^2-7x+2=0

(1)2x^2+3=5x
2x^2-5x+3=0
(2x-3)(x-1)=0
x1=3/2 x2=1
(2)4x^2-7x+2=0
(4x-1)(x-2)=0
x1=1/4 x2=2