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36x2-7
x2=7-36
x2=-29
x=-14,5
nie wiem,czy na pewno jest to dobre rozwiązanie. ;)
a=6
b=0
c=-7
delta=b²-4ac
delta=-4*6*(-7)
delta=168
x₁=-√168
x₂=√168
Jeżeli chodziło o: 6x² - 7 = 0, to
delta = b² - 4ac = 0 - 4*6*(-7) = 168
pierwiastek z delty = 2√42
x₁ = 2√42/12 = √42/6
x₂ = -2√42/12 = -√42/6