化简√18X²y(X小于0,y大于0) 3√12-6√3+√1(√12-√3)×√3
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![化简√18X²y(X小于0,y大于0) 3√12-6√3+√1(√12-√3)×√3](/uploads/image/z/13887965-29-5.jpg?t=%E5%8C%96%E7%AE%80%E2%88%9A18X%26%23178%3By%28X%E5%B0%8F%E4%BA%8E0%2Cy%E5%A4%A7%E4%BA%8E0%29+3%E2%88%9A12%EF%BC%8D6%E2%88%9A3%EF%BC%8B%E2%88%9A1%28%E2%88%9A12%EF%BC%8D%E2%88%9A3%29%C3%97%E2%88%9A3)
化简√18X²y(X小于0,y大于0) 3√12-6√3+√1(√12-√3)×√3
化简√18X²y(X小于0,y大于0) 3√12-6√3+√1
(√12-√3)×√3
化简√18X²y(X小于0,y大于0) 3√12-6√3+√1(√12-√3)×√3
√18X²y=√2×3^2X²y=/3X/√2y=-3x√2y
3√12-6√3+√1
= 3√2^2×3-6√3+√1
=3×2√3-6√3+1
=1
(√12-√3)×√3
=(√12)×√3-√3×√3
=√36-3
=√6^2-3
=6-3
=3
(√3+2)(√3-2)
=(√3)^2)-2^2
=3-4
=-1