Choose the quadratic equation in p, whose solutions are 1 and 7.
A
p3−px+6=0
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B
p2−px+6=0
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C
p2−8p+7=0
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D
p2−5p+7=0
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Solution
The correct option is Cp2−8p+7=0 The solution of p in the form of (p−1(p−7)=0 By multiplying, we get p2−7p−p+7=0 Therefore, the quadratic equation is p2−8p+7=0