Q11: Multiply.<br>- <span class="ql-formula" data-value="(11+\mathrm{x})(5 \mathrm{x}+3)"><span class="katex"><span
Q12: Express using positive exponents. Then simplify.<br>-
Q13: Simplify.<br>- <span class="ql-formula" data-value="-\left(7 x^{2}-4 x+7\right)"><span
Q14: Evaluate.<br>-The volume of a cube with
Q15: Identify the degree of each term
Q17: Simplify.<br>- <span class="ql-formula" data-value="\left(\frac{x^{8}}{2}\right)^{2}"><span class="katex"><span class="katex-mathml"><math
Q18: Multiply.<br>- <span class="ql-formula" data-value="\left(5 x^{4}-4\right)\left(x^{5}-3\right)"><span class="katex"><span
Q19: Evaluate.<br>- <span class="ql-formula" data-value="x^{2}-9"><span class="katex"><span class="katex-mathml"><math
Q20: Solve the problem. Express the answer
Q21: Find the degree of the polynomial.<br>-