Q83: Factor completely.<br>- <span class="ql-formula" data-value="x^{2}+3 x
Q84: Factor.<br>- <span class="ql-formula" data-value="x^{2}+2 x y-15
Q85: Factor.<br>- <span class="ql-formula" data-value="25 z^{4}-5 z^{2}-12"><span
Q86: Factor completely.<br>- <span class="ql-formula" data-value="20 \mathrm{a}^{3}
Q87: Factor completely.<br>- <span class="ql-formula" data-value="36 \mathrm{x}^{2}-49"><span
Q89: Solve the problem.<br>-The height of a
Q90: Factor.<br>- <span class="ql-formula" data-value="\frac{5}{3} \mathrm{x}^{11}-\frac{4}{3} \mathrm{x}^{10}+\frac{5}{3}
Q91: Factor completely.<br>- <span class="ql-formula" data-value="2 x^{3}+4
Q92: Solve using the principle of zero
Q93: Factor using the ac-method.<br>- <span class="ql-formula"