Question

Solve the equation: 121 = x²
A) x = 11
B) x = -11
C) x = 0
D) x = 121

Answer 1

The solution to the equation 121 = x² includes two values, x = 11 and x = -11, since both 11² and (-11)² equal 121.

Step-by-step explanation:

To solve the equation 121 = x², we need to find the value of x for which x² equals 121. Taking the square root of both sides of the equation, we obtain two possible solutions since the square root can be both positive and negative. The square root of 121 is 11, so the two possible solutions for x are 11 and -11.

Therefore, the complete solution to the equation is:

• x = 11
• x = -11

Which corresponds to choices A) x = 11 and B) x = -11.