Q78: Evaluate the rational expression for the
Q79: <span class="ql-formula" data-value="\frac{4 x+8}{x-3} \cdot \frac{2 x^{2}-12
Q80: <span class="ql-formula" data-value="\frac{6 \mathrm{x}}{7 \mathrm{x}-1}-\frac{18}{7 \mathrm{x}-1}"><span class="katex"><span
Q81: Simplify the difference quotient <span
Q82: <span class="ql-formula" data-value="y"><span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>y</mi></mrow><annotation encoding="application/x-tex">y</annotation></semantics></math></span><span
Q84: <span class="ql-formula" data-value="\frac{x^{2}+8 x+15}{x^{2}+10 x+21} \cdot \frac{x^{2}+9
Q85: For the given functions <span
Q86: Evaluate the rational expression for the
Q87: Find the LCD of the given
Q88: Jeff takes 5 hours longer to build