(5x3+3x-12)-(2x3-6x+17)=______

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问题 (5x³+3x-12)-(2x³-6x+17)=______

选项

答案 To add or subtract polynomials, combine like terms (remember to keep track of the negative signs!): (5x³+3x-12)-(2x³-6x+17) (5x³-2x³)+(3x+6x)-(17-12) 3x³+9x-5

解析

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(5x3+3x-12)-(2x3-6x+17)=______

GRE QUANTITATIVE

GRE

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