Answer:
Explanation:
bring 5 to the left hand side and the equation will becomes x^2-4x-5=0
then lets see for common factors and -5 and +1 are suitable since when you multiply them you get -5 and if you add them it becomes -4 so
x^2+x-5x-5=0
x(x+1)-5(x+1)=0
take (x+1) common
(x-5)(x+1)=0
x-5=0
x=0+5
x=+5
x+1=0
x=0-1
x=-1
so here are the two solutions