要快.要过程,要答案
t^2-45=016x^2-49=0(6x-1)^2=25(2x-3)^2=5(x+1)^2-12=0(x-5)^2-36=0x^2-9=0x^2=256...
t^2-45=0
16x^2-49=0
(6x-1)^2=25
(2x-3)^2=5
(x+1)^2-12=0
(x-5)^2-36=0
x^2-9=0
x^2=256 展开
16x^2-49=0
(6x-1)^2=25
(2x-3)^2=5
(x+1)^2-12=0
(x-5)^2-36=0
x^2-9=0
x^2=256 展开
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