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Anonymous
Anonymous asked in Science & MathematicsMathematics · 5 hours ago

Solve the following equations by using the quadratic formula  ?

x2 - 12x + 4

2 Answers

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  • Krishnamurthy
    Lv 7
    4 hours ago

    x^2 - 12x + 4

    = (x - 4 sqrt(2) - 6) (x + 4 sqrt(2) - 6)

  • L. E. Gant
    Lv 7
    5 hours ago

    x^2 -12x + 4 is NOT an equation!

    but, if you want the root values:

    x^2 -12x + 4 = 0

    ==> x = (12 +/- sqrt(144 - 16))/2

    ==> x = 6 +/- (sqrt(128)/2)

    now, 128 = 2^7

    so...

    ==> x = 6 +/- (8sqrt(2)/2)

    ==> x = 6 + 4sqrt(2) or x = 6 - 4sqrt(2) 

    done

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