Algebra cont

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d^=7d-12 (factoring the same as the last one

  • Algebra cont -

    d^2 -7d + 12 = 0 can be factored and rewritten
    (d-4)(d-3) = 0

    Multiply it out to verify.

    It is customary when typing equations to put the exponent (in this case 2) after the ^ sign

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