Answer:
Step-by-step explanation:
The given quadratic equation is expressed as
x² + 2x - 3 = 0
The equation is already in the standard form of ax² + bx + c
The general formula for solving quadratic equations is expressed as
x = [- b ± √(b² - 4ac)]/2a
From the equation given,
a = 1
b = 2
c = - 3
Therefore,
x = [- 2 ± √(2² - 4 × 1 × - 3)]/2 × 1
x = [- 2 ± √(4 - - 12)]/2
x = [- 2 ± √16]/2
x = (- 2 + 4)/2 or x = (- 2 - 4)/2
x = 2/2 or x = - 6/2
x = 1 or x = - 3
