Answer:
x = - 3, x = 1
Explanation:
x² + 2x - 3 = 0
consider the factors of the constant term (- 3) which sum to give the coefficient of the x- term (+ 2)
the factors are + 3 and - 1 , since
3 × - 1 = - 3 and + 3 - 1 = + 2 , then
(x + 3)(x - 1) = 0 ← in factored form
equate each factor to zero and solve for x
x + 3 = 0 ( subtract 3 from both sides )
x = - 3
x - 1 = 0 ( add 1 to both sides )
x = 1
solutions are x = - 3 , x = 1