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Sum
Is 0.2 a root of the equation x2 – 0.4 = 0? Justify
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Solution
No, since 0.2 does not satisfy the quadratic equation
i.e., (0.2)2 – 0.4 = 0.04 – 0.4 ≠0.
Concept: Nature of Roots of a Quadratic Equation
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