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Question

For 2x2+5x7=0, roots are:

A
72
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B
1
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C
1
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D
27
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Solution

The correct option is C 1
The given equation is 2x2+5x7=0
Here the sum of the coefficients is 2+57=0
If a+b+c=0 for an equation ax2+bx+c=0, then the roots are 1 and ca.
the roots of this equation are 1 and 72.

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