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

Toán Lớp 8: 6x^2+13x+5 mọi người giúp em với

Toán Lớp 8: 6x^2+13x+5 mọi người giúp em với

Comments ( 2 )

  1. 6x^2+13x+5
    =(6x^2 +3x)+(10x+5)
    =3x(2x+1)+5(2x+1)
    =(2x+1)(3x+5) 
     

  2. Answer
    6x^{2} + 13x + 5
    = 6x^{2} + 3x + 10x + 5
    = 3x . (2x + 1) + 5 . (2x + 1)
    = (3x + 5) . (2x + 1)
     

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