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anonymous

  • 5 years ago

How do u do quadratic equations i dont get it?

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  1. anonymous
    • 5 years ago
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    for example: -3xsquared+75=0

  2. anonymous
    • 5 years ago
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    That one is one you can probably solve like a regular equation: -3x^2=-75 x^2=-75/-3=25 square root both sides and x=5

  3. anonymous
    • 5 years ago
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    There are other methods for solving more complicated quadratic equations such as factoring and the quadratic formula.

  4. anonymous
    • 5 years ago
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    how do u do that?

  5. anonymous
    • 5 years ago
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    Quadratic equations come in this format: ax^2+bx+c If you want to use the quadratic formula it's x\[(-b \pm \sqrt{b^2-4ac})/2a\] If you want to factor you can sometimes divide by a GCF. Often you have to put it in this format: (x+k)(x+m). m & k have to be 2 number such that, when you multiply them together you get c, and when you add them together you get b.

  6. anonymous
    • 5 years ago
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    * x=

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