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Algebra

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solve for d. sq root d^2-11=5

A. 4,-4
B. 5,-5
C. 5,6
D. 6,-6
I think it is A....?

  • Algebra - ,

    It is not A, its D. 6,-6

  • Algebra - ,

    thanks. can you show me how to do it?

  • Algebra - ,

    √(d^2-11) = 5
    d^2-11 = 25
    d^2 = 36
    ...

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