Question

Equation (x + 1)² – x² = 0 has ____________ real root(s).

विकल्प

• 1

• 2

• 3

• 4

Answer 1

Equation (x + 1)² – x² = 0 has 1 real root(s).

Explanation:

Since (x + 1)² – x² = 0

⇒ x² + 1 + 2x – x² = 0

⇒ 1 + 2x = 0

⇒ x = `-1/2`

This gives only 1 real value of x.