Q56: Evaluate the rational function.<br>- <span class="ql-formula"
Q57: Find all values of the variable
Q58: Simplify the complex fraction.<br>- <span class="ql-formula"
Q59: <span class="ql-formula" data-value="\frac{4 \mathrm{x}}{\mathrm{x}+6}+\frac{3}{\mathrm{x}-6}"><span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mfrac><mrow><mn>4</mn><mi
Q60: <span class="ql-formula" data-value="\frac{1-7 \mathrm{x}}{\mathrm{x}^{2}-10 \mathrm{x}+9}+\frac{8-2 \mathrm{x}}{\mathrm{x}^{2}-10 \mathrm{x}+9}"><span
Q62: <span class="ql-formula" data-value="\frac{x^{2}+3 x-25}{x-8}+\frac{x^{2}+2 x-17}{8-x}"><span class="katex"><span class="katex-mathml"><math
Q63: <span class="ql-formula" data-value="\frac{x+13}{2 x}-\frac{x-7}{9 x}"><span class="katex"><span class="katex-mathml"><math
Q64: The effective spring constant keff for
Q65: Find the LCD of the given
Q66: <span class="ql-formula" data-value="\frac{7 x}{x^{2}-5 x+6}-\frac{28}{x^{2}-6 x+8}"><span class="katex"><span