If p and q are the roots of the equation x2 + px + q = 0, then
A. p = 1, q = – 2
B. q = 0, p = 1
C. p = – 2, q = 0
D. p = – 2, q = 1
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If p and q are the roots of the equation x2 + px + q = 0, then
A. p = 1, q = – 2
B. q = 0, p = 1
C. p = – 2, q = 0
D. p = – 2, q = 1
If p and q are the roots of the equation x2 + px + q = 0, then
A. p = 1, q = – 2
B. q = 0, p = 1
C. p = – 2, q = 0
D. p = – 2, q = 1
Since p and q are roots of the equations then
Sum of the roots is p + q = = – (p) = – p
Here a = 1, b = p and c = q
Products of the root = p × q = = q
∴ p × q = q p = 1
Putting value of ‘p’ in p + q = – p
1 + q = – 1
q = – 2