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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 9: căn bậc hai(8 /15) căn bậc hai(x^3 /27) căn bậc hai(12 /75) 5 /2*căn bậc hai(48 /49)

Toán Lớp 9: căn bậc hai(8 /15)
căn bậc hai(x^3 /27)
căn bậc hai(12 /75)
5 /2*căn bậc hai(48 /49)

Comments ( 2 )

  1. \sqrt{\frac{8}{15}}=\frac{2 xx \sqrt{30}}{15}
    \sqrt{ \frac{x^3}{27} }=\frac{x xx \sqrt{3x} }{9}
    \sqrt{ \frac{12}{75} } = 2/5
    5/2 xx \sqrt{ \frac{48}{49} } = \frac{ 10 xx \sqrt{3} }{7}

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222-9+11+12:2*14+14 = ? ( )