Question

x(5-x)=4

Answer 1

x=1
x=4
5-1=4
4x1=4

Answer 2

To solve, multiply the x and (5-x) together to get
5x-x^2=4
then subtract four from both sides to get
\[-x^{2}+5x-4\]
To solve for x, you can factor the equation, or use the quadratic formula