Obliczyć ze wzorów
delta=b kwardrat - 4ac
x1= -b- pierwiastek z delty / 2a
x2= -b+ delta/ 2a
a)2x^2-5x+3=0
b)-3x^2-5x-3=0
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a)
Δ = (-5)² - 4*2*3 = 25 - 24 = 1
√Δ = √1 = 1
x₁ = -(-5)-1/2*2 = 1
x₂ = -(-5)+1/2*2 = 6/4 = 2,5
b)
Δ = (-5)² - 4*(-3)*(-3) = 25-36 < 0
brak rozwiązań
drugi wzór masz błędy - powinno być x₂ = -b+√Δ/2a
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