Odpowiedź:
9*x^2+6x-1=0
delta= 36+36=72
√delta=3√8=6√2
x= (-6-6√2)/18=(-1-√2)/3
x=(1+√2)/3
Szczegółowe wyjaśnienie:
-9x² +6x = 1
-9x² +6x - 1 =0
a = -9 , b = 6 , c = - 1
∆ = b² - 4 * a * c
∆ = 6² - 4 *(-9) * (-1) = 36 - 36 = 0
∆ = 0
x = - b/2a = - 6/(2*(-9) = - 6/- 18 = 1/3
Odp : x = 1/3
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Odpowiedź:
9*x^2+6x-1=0
delta= 36+36=72
√delta=3√8=6√2
x= (-6-6√2)/18=(-1-√2)/3
x=(1+√2)/3
Szczegółowe wyjaśnienie:
Odpowiedź:
-9x² +6x = 1
-9x² +6x - 1 =0
a = -9 , b = 6 , c = - 1
∆ = b² - 4 * a * c
∆ = 6² - 4 *(-9) * (-1) = 36 - 36 = 0
∆ = 0
x = - b/2a = - 6/(2*(-9) = - 6/- 18 = 1/3
Odp : x = 1/3