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(x^4-9x+5x^7)+(5x-10+3x^4-2x^2)
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(x^4-9x+5x^7)+(5x-10+3x^4-2x^2)

User Ahmed Nuaman
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1 Answer

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(x^4-9x+5x^7)+(5x-10+3x^4-2x^2)\\\\=x^4-9x+5x^7+5x-10+3x^4-2x^2\\\\=5x^7+(x^4+3x^4)-2x^2+(-9x+5x)-10\\\\=5x^7+4x^4-2x^2-4x-10

User Alexey Gerasimov
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7.9k points
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