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

Toán Lớp 8: x.x=1 =>x=? giải đi ai nhanh cho clthn

Toán Lớp 8: x.x=1
=>x=?
giải đi ai nhanh cho clthn

Comments ( 2 )

  1. x.x=1
    -> x^2 =1
    ->x^2=(+-1)^2
    ->x=+-1

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

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