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Question

Form the quadratic equation if its roots are:
5 and 7

A
x2+2x35=0
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B
x2+x35=0
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C
x2+3x35=0
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D
x2+4x35=0
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Solution

The correct option is B x2+2x35=0
The equation whose roots are 5 and -7 are
(x5)(x+7)=0
x2+7x5x35=0
x2+2x35=0

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