6.5=x(5-x)

Solution for 6.5=x(5-x) equation:

6.5=x(5-x)

We move all terms to the left:

6.5-(x(5-x))=0

We add all the numbers together, and all the variables

-(x(-1x+5))+6.5=0


We calculate terms in parentheses: -(x(-1x+5)), so:

x(-1x+5)

We multiply parentheses

-1x^2+5x

Back to the equation:

-(-1x^2+5x)


We get rid of parentheses

1x^2-5x+6.5=0

We add all the numbers together, and all the variables

x^2-5x+6.5=0

a = 1; b = -5; c = +6.5;
Δ = b2-4ac
Δ = -52-4·1·6.5
Δ = -1
Delta is less than zero, so there is no solution for the equation