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

Toán Lớp 8: Câu 1.Tính: a)6x^3(2x^3-4x+3) b)6x^3-2x^3(4x+3) c)(2x^3-3x)(5x^3-2x)

Toán Lớp 8: Câu 1.Tính:
a)6x^3(2x^3-4x+3)
b)6x^3-2x^3(4x+3)
c)(2x^3-3x)(5x^3-2x)

Comments ( 1 )

  1. ~ Bạn tham khảo ~
    a, 6x^3(2x^3-4x+3)
    = 12x^6-24x^4+18x^3
    b,6x^3-2x^3(4x+3)
    = 6x^3-8x^4-6x^3
    = -8x^4
    c,(2x^3-3x)(5x^3-2x)
    = 10x^6-4x^4-15x^4+6x^2
    = 10x^6-19x^4+6x^2

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

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