Question

which of the following equations has real and distinct roots
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Answer 1

$\fbox \pink {A} \fbox \blue {n} \fbox \purple {S} \fbox \green {w} \fbox \red {E} \fbox \orange {r}$

A quadratic equation, ax2 + bx + c = 0; a ≠ 0 will have two distinct real roots if its discriminant, D = b2 - 4ac > 0. Hence, the equation x2 –3x + 4 = 0 has no real roots. Hence, the equation 2x2 + x – 1 = 0 has two distinct real roots. Hence, the equation 3x2 – 4x + 1 = 0 has two distinct real roots.

Answer 2

Answer:

A quadratic equation, ax2 + bx + c = 0; a ≠ 0 will have two distinct real roots if its discriminant, D = b2 - 4ac > 0. Hence, the equation x2 –3x + 4 = 0 has no real roots. Hence, the equation 2x2 + x – 1 = 0 has two distinct real roots. Hence, the equation 3x2 – 4x + 1 = 0 has two distinct real roots

Step-by-step explanation:

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