一元二次方程(x-1)²=(2-3x)²
问题描述:
一元二次方程(x-1)²=(2-3x)²
答
解 移项得(X-1)²-(2-3X)²=0
(X-1-2+3X)(X-1+2-3X)=0
(4X-3)(1-2X)=0
X1=3/4 X2=1/2
满意吧
答
一元二次方程(x-1)²=(2-3x)²
(x-1)²-(2-3x)²=0
﹙X-1+2-3X﹚﹙X-1-2+3X﹚=0
﹙-2X+1﹚﹙4X-3﹚=0
X₁=½ X₂=¾
答
(x-1)²=(2-3x)²
(x-1)²-(2-3x)²=0
(x-1+2-3x)(x-1-2+3x)=0
(-2x+1)(4x-3)=0
(2x-1)(4x-3)=0
x1=1/2 x2=3/4
答
(x-1)²=(2-3x)²
(x-1)²=(3x-2)²
(3x-2)²-(x-1)²=0
[(3x-2)+(x-1)][(3x-2)-(x-1)]=0
(4x-3)(2x-1)=0
x1=3/4,x2=1/2