Question

Solve by completing the square:
x^2 + 4x - 5 = 0

Answer 1

(1, -5)

Explanation:

x² + 4x - 5 = 0

(x - 1)(x + 5)

x - 1 = 0

x = 1

x + 5 = 0

x = -5

Answer 2

x = 1, -5

Explanation:

Use the formula (b/2)^2 in order to create a new term. Then, you solve for x by using this term to complete the square.