数学多项式计算题1.(14x^212x^3y+16x^4y^3)/(-4x^2)2.(16×10^17)/(0.2×10
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数学多项式计算题
1.(14x^212x^3y+16x^4y^3)/(-4x^2)
2.(16×10^17)/(0.2×10^7)
3.-4/3a^2b^2(3/2a^2+9/4ab-27/8b^2)
4.(x-2)(x-3)+2(x+6)(x-5)-3(x^2-7x+3)
1.(14x^212x^3y+16x^4y^3)/(-4x^2)
2.(16×10^17)/(0.2×10^7)
3.-4/3a^2b^2(3/2a^2+9/4ab-27/8b^2)
4.(x-2)(x-3)+2(x+6)(x-5)-3(x^2-7x+3)
1.(14x^2+12x^3y+16x^4y^3)/(-4x^2)
=7/2-3xy-4x^2y^3
2.(16×10^17)/(0.2×10^7)
=16/0.2
=80
3.-4/3a^2b^2(3/2a^2+9/4ab-27/8b^2)
=-2a^4b^2-3a^3b^3+9/2a^2b^4
4.(x-2)(x-3)+2(x+6)(x-5)-3(x^2-7x+3)
=x^2-5x+6+2x^2+2x-60-3x^2+21x-9
=18x-63
=7/2-3xy-4x^2y^3
2.(16×10^17)/(0.2×10^7)
=16/0.2
=80
3.-4/3a^2b^2(3/2a^2+9/4ab-27/8b^2)
=-2a^4b^2-3a^3b^3+9/2a^2b^4
4.(x-2)(x-3)+2(x+6)(x-5)-3(x^2-7x+3)
=x^2-5x+6+2x^2+2x-60-3x^2+21x-9
=18x-63
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