Question

If the product of the roots of the equation

ax² + bx + a² + 1 = 0 is –2, then a equals –

• A. –1
• B. 1
• C. 2
• D. –2

Answer 1

Answer: (A)

–1

Answer 2

$\frac{\alpha^{2} + 1}{\alpha}$= –2

Ž a² + 2a + 1 = 0

Ž a = –1