If (2x + 1)2 = 100, then which one of the following could equal x ?

If (2x + 1)² = 100, then which one of the following could equal x ?

A \( - \frac{{11}}{2}\)

B \( - \frac{9}{2}\)

C \(\frac{{11}}{2}\)

D \(\frac{{13}}{2}\)

Correct Answer: Option C

Solution:

দেয়া আছে, (2x + 1)² = 100

=> 2x - 1 = 10 => 2x = 11 x = \(\frac{{11}}{2}\)