Δ = ( − 1 ) 2 − 4 ⋅ 1 ⋅ ( − 2 ) = 1 + 8 = 9
The discriminant of the quadratic equation x 2 − x − 2 = 0 is calculated using the formula D = b 2 − 4 a c . After identifying the coefficients, we find that D = 9 , indicating that the equation has two distinct real roots. Thus, the value of the discriminant is positive which confirms the existence of these roots.
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Jawaban:Ameng amengPenjelasan:Basa Krama Alus = Ameng amengBasa Krama Lugu = DolanBahasa Indonesia = main