Mathematics

9th -

10thgrade

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Quadratic Formula

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10 questions

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  • 1. Multiple Choice
    5 minutes
    1 pt

     w2+7w+4=0w^2+7w+4=0  

     7±332\frac{-7\pm\sqrt{33}}{2}  

     7±652\frac{-7\pm\sqrt{65}}{2}  

     7±332\frac{7\pm\sqrt{33}}{2}  

     7±3112\frac{-7\pm3\sqrt{11}}{2}  

  • 2. Multiple Choice
    5 minutes
    1 pt

     5x2+3x3=05x^2+3x-3=0  

     3±i5110\frac{-3\pm i\sqrt{51}}{10}  

     3±6910\frac{-3\pm\sqrt{69}}{10}  

     3±692\frac{3\pm\sqrt{69}}{2}  

     3±32310\frac{-3\pm3\sqrt{23}}{10}  

  • 3. Multiple Choice
    5 minutes
    1 pt

     2y2+2=9y2y^2+2=9y  

     9±652\frac{-9\pm\sqrt{65}}{2}  

     9±5134\frac{9\pm5\sqrt{13}}{4}  

     9±654\frac{9\pm\sqrt{65}}{4}  

     9±974\frac{-9\pm\sqrt{-97}}{4}  

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