Gogotom Gogotom

18-02-2015
Mathematics

Answered

Solve (algebraically by any method) 3x to the 2 power +8x - 4= 0

Verified Answer :

Panoyin Panoyin

18-02-2015

3 x^{2} + 8x +(-4) = 0
x = -b + √ b² - 4ac
   2a
x = -8 + √ 8² - 4(3)(-4)
   2(3)
x = -8 + √64 - 48
   6
x = -8 + √16
   6
x = -8 + 4    x = -8 - 4
   6          6
x = -4 x = -12
      6         6
x = -2 x = -2
    3

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