Question

Solve the following quadratic equation using the completing the square method.

x² - 10x + 4 = 0

Answer 1

x is equal to 5 ± i√21

Explanation:

x² -10x + 4 = 0

x²- 10x -25 = -21

(x - 5)² = -21

x - 5 = √(-21)

x = 5 ± √(-21)

x = 5 ± i√21