sayerbear18 sayerbear18

12-05-2017
Mathematics

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Subtract and simplify: (10x4 – 2x + 7) – (6x4 + 2x3 – 4x2 – 1) A. 4x4 – 2x3 + 4x2 – 2x + 6 B. 4x4 + 2x3 – 4x2 – 2x + 8 C. 4x4 – 2x3 + 4x2 – 2x + 8 D. 16x4 + 2x3 + 4x2 – 2x + 8

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mjankiewicz mjankiewicz

12-05-2017

(10x^4 - 2x + 7) - (6x^4 + 2x^3 - 4x^2 - 1)=

[tex]= 10x^4-2x+7-6x^4-2x^3+4x^2+1=\\\\ = 4x^4-2x^3+4x^2-2x+8[/tex]

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