How to Find Quadratic Equations with Two Distinct Real Roots - Algebra Challenge #250 | BBO Math

How to Find Quadratic Equations with Two Distinct Real Roots - Algebra Challenge #250 | BBO Math

In this video, we share a quick and simple trick to determine if a quadratic equation has two distinct real roots using the discriminant method (D = b^2 - 4ac). We focus on how to interpret the value of the discriminant—specifically why a positive value (D lebih dari 0) indicates two distinct real roots, while D = 0 gives real and equal roots. Whether you are a student preparing for school algebra exams or checking NCERT Exemplar problems, this step-by-step guide breaks down the calculations so you can find the correct option in seconds!

Below is the original problem set in Indonesian, solved with universal mathematical methods:

Naskah Soal:
Cara Cepat & Mudah Soal Kuadrat #250: Trik Kilat!
Which of the following equations has two distinct real roots? (NCERT EXEMPLAR)
a. 2x^2 - 3√2x + 9/4 = 0
b. x^2 + x - 5 = 0
c. x^2 - 3x + 2√2 = 0

Penyelesaian opsi a:
a = 2, b = -3√2, c = 9/4
D = b^2 - 4ac
D = (-3√2)^2 - 4 . 2 . 9/4
D = 18 - 18 = 0

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Видео How to Find Quadratic Equations with Two Distinct Real Roots - Algebra Challenge #250 | BBO Math канала Belajar Bareng Okta