3 x 2=20 – 7 x with the quadratic…

Discussion in 'Mathematics' started by Apkhayp, Aug 4, 2018.

  1. Apkhayp

    Apkhayp New Member

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    3 x 2=20 – 7 x with the quadratic formula
     
  2. Herpkan

    Herpkan New Member

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    3 x^2=20 — 7 x 3 x^2+7 x — 20=0D=7^2 — 4*(-20)*3=49+120=169√169=13 x_1=(7+13)/6=20/6=10/3=3 1/3 x_2=) 7-13)/6=-6/6=-1
     

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