richardspann327 richardspann327

23-08-2017
Mathematics

contestada

Simplify: (3x^2 + 2x + 7x^3) + (10x^2 + 6x + 9)

A) 7x^3 + 13x^2 + 8x + 9
B) 7x^3 + 30x^2 + 12x + 9
C) 13x^2 + 8x + 16x^3
D) 13x^4 + 7x^3 + 8x^2 + 9

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texaschic101 texaschic101

23-08-2017

3x^2 + 2x + 7x^3 + 10x^2 + 6x + 9 ....combine like terms
7x^3 + 13x^2 + 8x + 9 <===

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Аноним Аноним

23-08-2017

Combine Like Terms:=3x2+2x+7x3+10x2+6x+9=(7x3)+(3x2+10x2)+(2x+6x)+(9)=7x3+13x2+8x+9
answer is A

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