Toán Lớp 9: CM:
a)11+6√2=(3+√2)^2
b)(5-√3)^2=28-10√3
Tìm X:
a)3√x=12
b)√1-2x+x^2=2x+1
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Toán Lớp 9: CM:
a)11+6√2=(3+√2)^2
b)(5-√3)^2=28-10√3
Tìm X:
a)3√x=12
b)√1-2x+x^2=2x+1
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