Q314: Subtract.<br>- <span class="ql-formula" data-value="\left(-9 x^{7}+8 x^{9}-8-3
Q315: Multiply and simplify.<br>- <span class="ql-formula" data-value="5^{11}
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
Q320: Solve the problem.<br>-An oval running track
Q321: Divide and simplify.<br>- <span class="ql-formula" data-value="\frac{\mathrm{p}^{3}}{\mathrm{p}^{-5}}"><span
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>-