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Algebra question bank (Quantitative Aptitude)

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Q1.

The roots of the equation $a(x^2 + 1) - (a^2 + 1)x = 0$ are

(A)

$a, \frac{1}{a}$

(B)

$a, 2a$

(C)

$a, \frac{1}{2a}$

(D)

None of these

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Q2.

The roots of the equation ${x^4} - 8{x^2} - 9 = 0$ are

(A)

$\pm 3, \pm 1$

(B)

$\pm 3, \pm i$

(C)

$\pm 2, \pm i$

(D)

None of these

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