Question

subtract x^5+5x-7 from x³-4x²+7x +9 . What is the degree of the resulting polynomial?

Answer 1

$$\begin{gathered} {\mathrm{x}}^3-4{\mathrm{x}}^2+7\mathrm{x}+9-{\mathrm{x}}^5-5\mathrm{x}+7 \\ ={\mathrm{x}}^3-4{\mathrm{x}}^2-{\mathrm{x}}^5+2\mathrm{x}+16 \\ \mathrm{The}\mathrm{degree}\mathrm{of}\mathrm{the}\mathrm{resulting}\mathrm{polynomial}\mathrm{is}5 \end{gathered}$$