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Emily778

  • 2 years ago

what is the solution to x= sqrt-x+6 ?

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  1. ehuman
    • 2 years ago
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    this? |dw:1388985786959:dw|

  2. Timeless
    • 2 years ago
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    \[\huge x = \sqrt{-x+6}\] square both sides. \[\huge x^2 = -x +6 \] solve as a quadratic \[\huge x^2 + x - 6 = 0\]

  3. kc_kennylau
    • 2 years ago
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    Remember to check for extraneous solutions :D

  4. Emily778
    • 2 years ago
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    what next?

  5. kc_kennylau
    • 2 years ago
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    https://www.youtube.com/watch?v=2ZzuZvz33X0

  6. kc_kennylau
    • 2 years ago
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    https://www.youtube.com/watch?v=04RpkdaNzr8

  7. kc_kennylau
    • 2 years ago
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    https://www.youtube.com/watch?v=vl9o9XEfXtw

  8. Timeless
    • 2 years ago
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    Use the quadratic formula or just factor: \[\huge (x+3)(x-2) = 0\] \[\huge x = -3 , x = 2\] Plug them in back to the original equation to confirm if they are both correct.

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