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प्रश्न
Find, using the quadratic formula, the roots of the following quadratic equations, if they exist
x2 + 4x + 5 = 0
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उत्तर
Given quadratic equation is x2 + 4x + 5 = 0
D = b2 – 4ac
= (4)2 – 4(1)(5)
= 16 – 20
= – 4
Since D < 0, the roots of the given quadratic equation does not exist.
संबंधित प्रश्न
Find the values of k for the following quadratic equation, so that they have two equal roots.
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Find the values of k for which the roots are real and equal in each of the following equation:
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Activity: 4x2 – 5x + 3 = 0
a = 4 , b = ______ , c = 3
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= ( ______ ) – 48
b2 – 4ac = ______
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