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

Toán Lớp 8: 5a^2b-2a+10ab^2-4b giúp mik vs

Toán Lớp 8: 5a^2b-2a+10ab^2-4b giúp mik vs

Comments ( 1 )

  1. $5a^2b-2a+10ab^2-4b $
    $=5ab(a+2b)-2(a+2b)$
    $=(a+2b)(5ab-2)$

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

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