Q316: Multiply mentally.<br>- <span class="ql-formula" data-value="\left(-\mathrm{a}^{2}-12\right)^{2}"><span class="katex"><span
Q317: Evaluate the polynomial.<br>- <span class="ql-formula" data-value="6
Q318: Collect like terms and then arrange
Q319: Add.<br>- <span class="ql-formula" data-value="(\mathrm{r}+4 \mathrm{~s}+1)+(-3 \mathrm{r}+\mathrm{s})+(\mathrm{s}+4)"><span
Q320: Solve the problem.<br>-An oval running track
Q322: Collect like terms.<br>- <span class="ql-formula" data-value="n^{3}-3
Q323: Evaluate.<br>- <span class="ql-formula" data-value="p^{6}"><span class="katex"><span class="katex-mathml"><math
Q324: Find the degree of the polynomial.<br>-
Q325: Subtract.<br>- <span class="ql-formula" data-value="\left(-14 x+6 x^{6}-7
Q326: Write the number in scientific notation.<br>-0.00000028905<br>A)