2. If the sum of squares of the roots of the equation
x*2 + 2x - p =0 is 10 then the value of p
(a) 3 (6) 3 (c) 6 (d) - 6
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Step-by-step explanation:
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Answer:
p = 3
Step-by-step explanation:
x² + 2x - p =0
m + n = -2 , m² + n² = 10
(m + n )²= m² + n² + 2mn = 10 - 2p = 4 , 2p = 6 , p = 3
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