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anonymous

  • one year ago

When will the equation x^2 = c, where c is a whole number, have two solutions? Explain.

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  1. UsukiDoll
    • one year ago
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    take the square root on both sides

  2. UsukiDoll
    • one year ago
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    |dw:1438851091329:dw| what is the square root of x^2 ?

  3. UsukiDoll
    • one year ago
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    nugh this only works for positive numbers.. -______-!!!!!!!!! like let c = 1 for example

  4. UsukiDoll
    • one year ago
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    |dw:1438851198257:dw| I think I've jumped the gun on this...

  5. UsukiDoll
    • one year ago
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    or maybe not.... if we let c = 5 maybe... |dw:1438851256186:dw|

  6. UsukiDoll
    • one year ago
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    yeah when c ........ sfklsdjkljf240329048390sdaf when c is an odd number... not a perfect square... then we take the square root of both sides and have two solutions, one positive square root of 5 and one negative square root of 5.. then if we let \[x = \sqrt{5}, -\sqrt{5}\] and plug it back into the equation.. perhaps \[(\sqrt{5})(\sqrt{5}) = 5\] \[5=5 \] and then \[(-\sqrt{5})(-\sqrt{5}) = 5\] \[5=5 \] sorry trainwreck explanation.. I'm sure someone smarter than me will debunk it one way or another

  7. UsukiDoll
    • one year ago
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    it sounded ok to me at first... like if we have all odd numbers (probably mostly primes) then whatever I wrote would work ???

  8. anonymous
    • one year ago
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    it seems okay, at least it makes sense to me, thank you

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