用适当解方程(1)2√x²-√2=0(2)(2x-3)²-2x+3=0(3)(3y-1)²-8(3y-1)+15=0
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![用适当解方程(1)2√x²-√2=0(2)(2x-3)²-2x+3=0(3)(3y-1)²-8(3y-1)+15=0](/uploads/image/z/2489960-56-0.jpg?t=%E7%94%A8%E9%80%82%E5%BD%93%E8%A7%A3%E6%96%B9%E7%A8%8B%EF%BC%881%EF%BC%892%E2%88%9Ax%26%23178%3B-%E2%88%9A2%3D0%EF%BC%882%EF%BC%89%EF%BC%882x-3%EF%BC%89%26%23178%3B-2x%2B3%3D0%EF%BC%883%EF%BC%89%EF%BC%883y-1%EF%BC%89%26%23178%3B-8%EF%BC%883y-1%EF%BC%89%2B15%3D0)
用适当解方程(1)2√x²-√2=0(2)(2x-3)²-2x+3=0(3)(3y-1)²-8(3y-1)+15=0
用适当解方程(1)2√x²-√2=0(2)(2x-3)²-2x+3=0(3)(3y-1)²-8(3y-1)+15=0
用适当解方程(1)2√x²-√2=0(2)(2x-3)²-2x+3=0(3)(3y-1)²-8(3y-1)+15=0
(1)2√x²-√2=0
2|x|=√2
|x|=√2/2
x=±√2/2
(2)(2x-3)²-2x+3=0
(2x-3)^2-(2x-3)+1/4=1/4
(2x-3-1/2)^2=1/4
2x-3.5=土1/2
x1=2 x2=-1.5
(3)(3y-1)²-8(3y-1)+15=0
(3y-1+4)^2=1
3y+3=土1
y1=-2/3 y2=-4/3