Please use " ^ " to indicate exponentiation: x^2 + 3x - 4 = 0
Here, a = 1, b = 3 and c = -4.
The formula for the discriminant is b^2 - 4(a)(c).
Substituting the given values of a, b and c, we get:
(3)^2 - 4(1)(-4)
Evaluating this, we get 9 + 16 = 25.
The discriminant is 25.
 -3 plus or minus √25
Taking this further, x = ------------------------------------
 2
 -3 plus or minus 5
or: x = -------------------------------- => {-4, 1} (solutions)
 2
 
        
                    
             
        
        
        
Answer:
its d 
Step-by-step explanation:
used photo math