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anonymous

  • 5 years ago

r^2+81=r^2+60r+900

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  1. anonymous
    • 5 years ago
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    can someone help me ?

  2. anonymous
    • 5 years ago
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    thanks

  3. amistre64
    • 5 years ago
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    ahh .... that r^2= typo had me confused

  4. amistre64
    • 5 years ago
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    r^2+81=r^2+60r+900 ; -r^2 both side 81 = 60r +900 ; -900 both sides -819 = 60r ;/60 -819/60 = r = -13.65

  5. anonymous
    • 5 years ago
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    the r^2 i mean to be r squared sorry

  6. myininaya
    • 5 years ago
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    amistre is correct

  7. myininaya
    • 5 years ago
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    ok so we have r+81=r+60r+900?

  8. anonymous
    • 5 years ago
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    yes

  9. myininaya
    • 5 years ago
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    81=60r+900 -819=60r r=-819/60=-13.65

  10. anonymous
    • 5 years ago
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    thank u

  11. amistre64
    • 5 years ago
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    youre welcome :)

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