(4a^2b-3ab)+(-5a^b+2ab)
=(4a²b-5a²b)+(2ab-3ab)
=-a²b-ab
3x^2-{5x-(1/2x-3)+2x^2}
=3x²-(5x-1/2x+3+2x²)
=3x²-2x²-9/2x-3
=x²-9/2x-3
(5a^2+2a-1)-4(3-8a+2a^2)
=5a²+2a-1-12+32a-8a²
=-3a²+34a-13
(4a^2b-10b^3)+(-3a^2b+10b^3)
2个回答
相关问题
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(4a^3b-10b^3)+(-3a^2b^2+10b^3)
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(a+b)+(2a+b/2*3)+(3a+b/3*4).+(10a+b/9*10)的化简
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