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Add polynomials $-3 x^{2}+2 x+6$ and $-x^{2}-x-1$
ago in Mathematics by Diamond (78,880 points) | 4 views

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$\left(-3 x^{2}+2 x+6\right)+\left(-x^{2}-x-1\right)=$

$-3 x^{2}+2 x+6-x^{2}-x-1=$

$-4 x^{2}+x+5$

We remove the brackets and we group the variables by degrees.
ago by Diamond (78,880 points)

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