Simplify. (6x^3+x^5+2x^2−7−4x)−(3x^2−5x+2+5x^5+3x^4)

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asked Feb 28, 2019 86.9k views

3 votes

Simplify. (6x^3+x^5+2x^2−7−4x)−(3x^2−5x+2+5x^5+3x^4)

Mathematics
high-school

Luis Melgratti asked

by Luis Melgratti

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2 Answers

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The correct answer is -4x^5 - 3x^4 + 6x^3 - x^2 + x - 9.

Nitishagar answered Mar 1, 2019

by Nitishagar

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5 votes

$(6 {x}^(3) + {x}^(5) + 2 {x}^(2) - 7 - 4x) - (3 {x}^(2) - 5x + 2 + 5 {x}^(5) + 3 {x}^(4) \\ ={x}^(5) + 6 {x}^(3) + 2 {x}^(2) - 4x - 7 -5 {x}^(5) - 3 {x}^(4) - 3 {x}^(2) + 5x - 2 \\ = - 4 {x}^(5) - 3 {x}^(4) + 6 {x}^(3) - {x}^(2) + x - 9$

Parvus answered Mar 4, 2019

by Parvus

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