Question
Use vertical form to add the polynomials.$$\begin{array}{l}{6 x^{3}-4 x^{2}+7} \\{7 x^{3}+9 x^{2}+12} \\\hline\end{array}$$
Step 1
The highest degree is 3, so we align $6x^3$ and $7x^3$ together, $-4x^2$ and $9x^2$ together, and the constants $7$ and $12$ together. Show more…
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