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08-10-2020
Mathematics

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Solve the equation. Select all that apply.

x2 = 121

Respuesta :

08-10-2020

Answer:

x = ±11

Step-by-step explanation:

Step 1: Write equation

x² = 121

Step 2: Solve for x

Square root both sides: x = ±11

Step 3: Check

Plug in x to verify it's a solution.

(-11)² = 121

121 = 121

11² = 121

121 = 121

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