68=28-5x(x-3)

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Solution for 68=28-5x(x-3) equation: 



68=28-5x(x-3)

We move all terms to the left:

68-(28-5x(x-3))=0



We calculate terms in parentheses: -(28-5x(x-3)), so:

28-5x(x-3)

determiningTheFunctionDomain
-5x(x-3)+28

We multiply parentheses

-5x^2+15x+28

Back to the equation:

-(-5x^2+15x+28)



We get rid of parentheses

5x^2-15x-28+68=0

We add all the numbers together, and all the variables

5x^2-15x+40=0

a = 5; b = -15; c = +40;
Δ = b2-4ac
Δ = -152-4·5·40
Δ = -575
Delta is less than zero, so there is no solution for the equation

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