anonymous
  • anonymous
Use the quadratic formula to solve the equation. x^2+7x-80=0
Geometry
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
http://www3.wolframalpha.com/Calculate/MSP/MSP8511did7629iebb3e6g000032f8d9i26bd4e72f?MSPStoreType=image/gif&s=9&w=205.&h=36.
ivettef365
  • ivettef365
http://www.mathwarehouse.com/quadratic/quadratic-formula-calculator.php
anonymous
  • anonymous
Here is a song to remember the quadratic formula: pop goes the weasel. Hum the tune or sing it. x equals negative b, plus or minus square root, b squared minus fo-ur a c; All over 2 a! ("all over 2 a!" is "pop goes the weasel!")

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