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

Toán Lớp 8: Các bạn ơi, giúp mìn nhé. (a+c)2

Toán Lớp 8: Các bạn ơi, giúp mìn nhé. (a+c)2

Comments ( 2 )

  1. (a+c)2
    =a.2+c.2
    =2a+2c
    to Áp dụng a(b+c)=ab+ac
     

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

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