# Question: 11 solve the quadratic equation by factoring enter your answers...

###### Question details

11) Solve the quadratic equation by factoring. (Enter your answers as a comma-separated list.)

9*x*^{2} + 3* x* = 0

* x* =

12) Solve the quadratic equation by factoring. (Enter your answers as a comma-separated list.)

−*x*^{2} + 11* x* =
28

*x* =

13) Solve the equation by extracting the square roots. When a
solution is irrational, list both the exact solution *and*
its approximation rounded to two decimal places.

2*x*^{2} = 36

x = |

≈ | (smaller value) | |

x = |

≈ |
(larger value) |

14) Solve the equation by extracting the square roots. When a
solution is irrational, list both the exact solution *and*
its approximation rounded to two decimal places.

(* x* − 2)

^{2}= 36

x = |

≈ | (smaller value) | |

x = |

≈ |
(larger value) |

15) Use the Quadratic Formula to solve the equation. (Enter your answers as a comma-separated list.)

2*x*^{2} + * x* − 1 =
0

* x* =