[x(3-4X)+2X方(X-1)]除以(-2X)
1个回答
[x(3-4X)+2X方(X-1)]除以(-2X)
=(3x-4x²+2x³-2x²)÷﹙-2x)
=(2x³-6x²+3x)÷﹙-2x)
=-x²+3x-3/2
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