Answer:
Solution of equation :-
x = 1 or x = -4
Explanation:
The given quadratic equation is x² + 3x - 4 = 0
To find the solution
Using splitting method
x² - x + 4x - 4 = 0
x(x - 1) + 4(x - 1) = 0 (take x and 4 as common)
(x - 1)(x + 4) = 0
(x - 1) = 0 or (x + 4)= 0
If x - 1 = 0 then x = 1
If x + 4 = 0 then x = -4