分式计算8m^2*n^4*(-3m/4n^3)(-m^2n/2)
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分式计算8m^2*n^4*(-3m/4n^3)(-m^2n/2)
8m²n⁴ • (-3m/4n³) • (-m²n/2)
= (8•3)/(4•2) • m^(2 + 1 + 2) • n^(4 - 3 + 1)
= 3m⁵n²
8m^2*n^4 * [-3m/(4n^3)](-m^2*n/2)
= (8/3)/(4*2) * m^(2 + 1 + 2)*n^(4 - 3 + 1)
= 3m^5*n^2
再问: 这是一道选择题。A.-3m B.3m C.-12m D. 12m
再答: 那是不是你问题打错了?加点括号吧
再问: 8m^2n^4*(-3m/4n^3)/ (-m^2n/2)
再答: [8(m^2)(n^4) * (-3m)/(4n^3)]/(-m^2 * n/2) = [8*(-3/4)]/(-1/2) * m^(2+1)*n^(4-3)/(m^2 * n) = 8*(3/4)*2 * m^(3-2) * n^(1-1) = 2*3*2 * m*(1) * n^(0) = 12m
= (8•3)/(4•2) • m^(2 + 1 + 2) • n^(4 - 3 + 1)
= 3m⁵n²
8m^2*n^4 * [-3m/(4n^3)](-m^2*n/2)
= (8/3)/(4*2) * m^(2 + 1 + 2)*n^(4 - 3 + 1)
= 3m^5*n^2
再问: 这是一道选择题。A.-3m B.3m C.-12m D. 12m
再答: 那是不是你问题打错了?加点括号吧
再问: 8m^2n^4*(-3m/4n^3)/ (-m^2n/2)
再答: [8(m^2)(n^4) * (-3m)/(4n^3)]/(-m^2 * n/2) = [8*(-3/4)]/(-1/2) * m^(2+1)*n^(4-3)/(m^2 * n) = 8*(3/4)*2 * m^(3-2) * n^(1-1) = 2*3*2 * m*(1) * n^(0) = 12m
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