What are solutions to this equation, x^2 + 3x -4 > 0

Solution of equation :-

x = 1 or x = -4

Step-by-step 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

To find the percentage, take the part (30) and divide it by the whole (50).

Then, take the quotient and multiply it by 100.

(30 / 50) * 100 = 60%

60% of the exhibits feature birds