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Question

Solve the following quadratic equation: x2=15


A

x= √15

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B

x= - √15

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C

x = √15 or x = - √15

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D

x = ± 15

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Solution

The correct option is C

x = √15 or x = - √15


x = 15 or x = 15 because on squaring both 15 and 15,
we get 15.


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