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The value of {b} for which the equation {x}^{{2}}+{b}{x}-{1}={

Question

The value of $b$ for which the equation $x^{2} + b x - 1 = 0 and x^{2} + x + b = 0$ have one root in common is (a) $- 2$ (b) $- i 3$ (c) $i 5$ (d) $2$

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Scarlett Discussed

The value of

b

for which the equation

x^{2} + b x - 1 = 0 and x^{2} + x + b = 0

have one root in common is (a)

- 2

(b)

- i 3

(c)

i 5

(d)

2

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Question Text	The value of $b$ for which the equation $x^{2} + b x - 1 = 0 and x^{2} + x + b = 0$ have one root in common is (a) $- 2$ (b) $- i 3$ (c) $i 5$ (d) $2$
Answer Type	Video solution: 1
Upvotes	150