作业帮(3x^2-2x+1)·3x计算（6a^3b^2-9a^2b+3ab）÷3ab(2m+3)^2-3m(m-2)-(m+2)(m-2)[(3x-2)^2-(2x+1)(2x-1)]·3x
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![(3x^2-2x+1)·3x计算（6a^3b^2-9a^2b+3ab）÷3ab(2m+3)^2-3m(m-2)-(m+2)(m-2)[(3x-2)^2-(2x+1)(2x-1)]·3x](/uploads/image/z/759649-49-9.jpg?t=%283x%5E2-2x%2B1%29%C2%B73x%E8%AE%A1%E7%AE%97%EF%BC%886a%5E3b%5E2-9a%5E2b%2B3ab%EF%BC%89%C3%B73ab%282m%2B3%29%5E2-3m%28m-2%29-%28m%2B2%29%28m-2%29%5B%283x-2%29%5E2-%282x%2B1%29%282x-1%29%5D%C2%B73x)
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(3x^2-2x+1)·3x计算（6a^3b^2-9a^2b+3ab）÷3ab(2m+3)^2-3m(m-2)-(m+2)(m-2)[(3x-2)^2-(2x+1)(2x-1)]·3x
(3x^2-2x+1)·3x计算
（6a^3b^2-9a^2b+3ab）÷3ab
(2m+3)^2-3m(m-2)-(m+2)(m-2)
[(3x-2)^2-(2x+1)(2x-1)]·3x
(3x^2-2x+1)·3x计算（6a^3b^2-9a^2b+3ab）÷3ab(2m+3)^2-3m(m-2)-(m+2)(m-2)[(3x-2)^2-(2x+1)(2x-1)]·3x
(3x^2-2x+1)·3x
=3x^2-5x+1
（6a^3b^2-9a^2b+3ab）÷3ab
=2a^2b-3a+1
(2m+3)^2-3m(m-2)-(m+2)(m-2)
=(4m^2+12m+9)-(3m^2-6)-(m^2-4)
=4m^2+12m+9-3m^2+6-m^2+4
=4m^2-3m^2-m^2+12m+9+6+4
=12m+19
[(3x-2)^2-(2x+1)(2x-1)]·3x
=[(9x^2-12x+4)-(4x^2-1)]3x
=(9x^2-12x+4-4x^2+1)3x
=(9x^2-4x^2-12x+4+1)3x
=(5x^2-12x+5)3x
=15x^3-36x^2+15x
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