if one root of x²+px-7=0 is 7 then value of P is
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Since 7 is the root of the equation. So x=7 satisfy the given quad equation
(7)^2 + 7p -7 = 0
49 - 7 = 7p
7p = 42
p = 6
(7)^2 + 7p -7 = 0
49 - 7 = 7p
7p = 42
p = 6
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