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# Quadratic Formula

### Module Seventeen - Lazarski

Question | Answer |
---|---|

x^2+7x+4=0 Use the quadratic formula to solve. | x = -7 plus/minus the square root of 33, all over 2. |

(x+5)x-1=2 Use the quadratic formula to solve. | a = -2 plus/minus the square root of 11. |

2/5y^2+1/5y+3/5=0 Use the quadratic formula to solve. | x = -1 plus/minus i the square root of 23, all over 4. |

How many solutions does a positive answer to b^2-4ac have? | Two real solutions. |

How many solutions does the answer 0 to b^2-4ac have? | One real solution. |

How many solutions does a negative answer to b^2-4ac have? | Two complex, but not real, solutions. |

Solve 6=4x-5x^2 and tell how many solutions it has. | -104 with two complex, but not real, solutions. |

A=X, B=X+8, C=36ft Solve for x. | 21 and 29 |

How is the Pythagorean Theorum written? | a^2+b^2=c^2 |

(p+2)^2=9(p+2)-20 Solve for p+2. | 2 and 3 |

x^2/3-3x^1/3-10=0 Solve for x^1/3 | 125 and -8 |

(x+1)(x-5)=4 Solve for x. | x=2 plus/minus the square root of 13. |

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