- Choice G$$(x^{2}+2x)+(3x+5)+(x^{2}+1)+(6x-4)$$ $$=(x^{2}+x^{2})+(2x+3x+6x)+(5+1-4)$$ $$=2x^{2}+11x+2$$
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- Choice G$$(x^{2}+2x)+(3x+5)+(x^{2}+1)+(6x-4)$$ $$=(x^{2}+x^{2})+(2x+3x+6x)+(5+1-4)$$ $$=2x^{2}+11x+2$$
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