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प्रश्न
If x2 – 7x = 0; the value of x is ______.
विकल्प
0 and 7
7
0
0 or 7
उत्तर
If x2 – 7x = 0; the value of x is 0 or 7.
Explanation:
Given x2 – 7x = 0
`\implies` x(x – 7) = 0
`\implies` x = 0 or x – 7 = 0
i.e. x = 7
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