解16(2x-1)²=25(x-2)² (x-3)+2x(x-3)=0 9(x-2)²=4(x+1)² 2x²-2根号2x+1=0
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解:
16(2x-1)²=25
2x-1=±5/4
x=(1±5/4)/2
x=9/8或者x= -1/8
(x-2)² (x-3)+2x(x-3)=0
(x-3)[(x-2)²+2x] =0
(x-3)(x^2-2x+4)=0
(x-3)[(x-1)^2+3]=0
(x-1)^2+3≠0
x=3
9(x-2)²=4(x+1)²
9x^2-36x+36=4x^2+8x+4
5x^2-44x+32=0
(5x-4)(x-8)=0
x=4/5或者x=8
2x²-2√2x+1=0
(√2x-1)^2=0
x=√2/2
欢迎采纳!感谢
16(2x-1)²=25
2x-1=±5/4
x=(1±5/4)/2
x=9/8或者x= -1/8
(x-2)² (x-3)+2x(x-3)=0
(x-3)[(x-2)²+2x] =0
(x-3)(x^2-2x+4)=0
(x-3)[(x-1)^2+3]=0
(x-1)^2+3≠0
x=3
9(x-2)²=4(x+1)²
9x^2-36x+36=4x^2+8x+4
5x^2-44x+32=0
(5x-4)(x-8)=0
x=4/5或者x=8
2x²-2√2x+1=0
(√2x-1)^2=0
x=√2/2
欢迎采纳!感谢
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