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

1 answer:

5 0

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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