user81882 user81882

21-10-2019
Mathematics

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Help thankssssss!!!!!!

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Respuesta :

21-10-2019

Answer:

-x^5+3x^4+16x^3+7x^2-3x+6

Step-by-step explanation:

Adding given polynomials:

=(x^5-4x^4+7x^3+8)+ (9x^3+7x^2-10)+(-2x^5+7x^4-3x+8)

=x^5-2x^5-4x^4+7x^4+7x^3+9x^3+7x^2-3x+8+8-10

=-x^5+3x^4+16x^3+7x^2-3x+6

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