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

Toán Lớp 8: rut gon phan thuc (x+5)(x-5) phan x(5-x)

Toán Lớp 8: rut gon phan thuc (x+5)(x-5) phan x(5-x)

Comments ( 2 )

  1. ((x+5)(x-5))/(x(5-x))
    =((x+5)(x-5))/(-x(x-5))
    =-(x+5)/(x)
     

  2. Giải đáp+Lời giải và giải thích chi tiết:
    ((x+5)(x-5))/(x(5-x))
    =((x+5)(x-5))/(-x(x-5))
    =-(x+5)/x

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