Q64: Simplify.<br>- <span class="ql-formula" data-value="\left(\frac{\mathrm{x}^{5}}{\mathrm{y}^{5} \mathrm{z}^{4}}\right)^{4}"><span class="katex"><span
Q65: Identify the coefficient of each term
Q66: Add.<br>- <span class="ql-formula" data-value="9 x^{5}+5 x^{4}+6
Q67: Multiply.<br>- <span class="ql-formula" data-value="(x+10)(-5 x+5)"><span class="katex"><span
Q68: Multiply or divide and write scientific
Q70: Evaluate the polynomial.<br>- <span class="ql-formula" data-value="6-5
Q71: Simplify.<br>- <span class="ql-formula" data-value="-(2 \mathrm{x}-8)"><span class="katex"><span
Q72: Evaluate the polynomial.<br>- <span class="ql-formula" data-value="4
Q73: Evaluate.<br>- <span class="ql-formula" data-value="9^{1}"><span class="katex"><span class="katex-mathml"><math
Q74: Multiply.<br>- <span class="ql-formula" data-value="\left(2 y^{2}-4\right)\left(2 y^{2}+4\right)"><span