求下列各式中x的值 (1)2x²-50=0 (2)3(x-1)³+375=0
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求下列各式中x的值 (1)2x²-50=0 (2)3(x-1)³+375=0
求下列各式中x的值 (1)2x²-50=0 (2)3(x-1)³+375=0
求下列各式中x的值 (1)2x²-50=0 (2)3(x-1)³+375=0
(1)2x²-50=0
2x^2=50
x^2=25
x=±5
(2)3(x-1)³+375=0
3(x-1)³=-375
(x-1)³=-125
x-1=-5
x=-4
(1)2x²-50=0
2x²=50
x=±5
(2)3(x-1)³+375=0
(x-1)³=-125
x-1=-5
x=-4