13=3+5x(-2-2x+5)

Solution for 13=3+5x(-2-2x+5) equation:

13=3+5x(-2-2x+5)

We move all terms to the left:

13-(3+5x(-2-2x+5))=0

We add all the numbers together, and all the variables

-(3+5x(-2x+3))+13=0


We calculate terms in parentheses: -(3+5x(-2x+3)), so:

3+5x(-2x+3)

determiningTheFunctionDomain
5x(-2x+3)+3

We multiply parentheses

-10x^2+15x+3

Back to the equation:

-(-10x^2+15x+3)


We get rid of parentheses

10x^2-15x-3+13=0

We add all the numbers together, and all the variables

10x^2-15x+10=0

a = 10; b = -15; c = +10;
Δ = b2-4ac
Δ = -152-4·10·10
Δ = -175
Delta is less than zero, so there is no solution for the equation