Solve the rational equation. If the equation has no solution, so state. \( x^{2}+x-20 \) \( +\frac{1}{x^{2}+6 x+5}=\frac{5}{x^{2}-3 x-4} \) Select the correct choice below and, if necessary, fill in the answer box to complete your choice A. The solution set is \( \} \). (Simplify your answer. Use a comma to separate answers as needed.) B. There are infinitely many solutions. C. There is no solution.

1.4 The straight line graph defined by \( y=2 x-4 \) will cut the \( y \)-axis at A. \( (0 ; 4) \) B. \( (-4 ; 2) \) C. \( (0 ;-4) \) D. \( (2 ;-4) \)

\( 3z^{3}<9x \)

Simplify the expression. Assume that the variable is unrestricted and use absolute value symbols when necessary. \[ \sqrt{25 y^{6}} \]

Simplify the expression. Assume that the variable is unrestricted and use absolute value symbols when necessary. \[ \sqrt{y^{2}-2 y+1} \]

Multiply. \[ \begin{array}{l}(\sqrt{2}+7 \sqrt{5})(6 \sqrt{5}+\sqrt{2}) \\ \text { Simplify your answer as much as possible. }\end{array} \] II .