Question

Find the solutions for
y = x^2 - 3x - 4

Answer 1

The answer is -1,4

x sq -3x-4=0

x sq -(4-1)x-4=0

(x sq -4x)+(x-4)=0

x(x-4)+1(x-4)=0

x-4=0, x+1=0

x=4 , x=-1