Algebra-1

To solve the quadratic equation x² - 20x + 98 = 0 by completing the square, we can follow these steps:

1. Move the constant term to the right side of the equation:
   x² - 20x = -98

2. Take half of the coefficient of x, square it, and add it to both sides of the equation:
   x² - 20x + (-20/2)² = -98 + (-20/2)²
   x² - 20x + 100 = -98 + 100
   x² - 20x + 100 = 2

3. Factor the left side of the equation as a perfect square:
   (x - 10)² = 2

4. Take the square root of both sides of the equation:
   
   

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