3x(5-x)-2(5+x)=3(x+1)

Solution for 3x(5-x)-2(5+x)=3(x+1) equation:

3x(5-x)-2(5+x)=3(x+1)

We move all terms to the left:

3x(5-x)-2(5+x)-(3(x+1))=0

We add all the numbers together, and all the variables

3x(-1x+5)-2(x+5)-(3(x+1))=0

We multiply parentheses

-3x^2+15x-2x-(3(x+1))-10=0


We calculate terms in parentheses: -(3(x+1)), so:

3(x+1)

We multiply parentheses

3x+3

Back to the equation:

-(3x+3)


We add all the numbers together, and all the variables

-3x^2+13x-(3x+3)-10=0

We get rid of parentheses

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

We add all the numbers together, and all the variables

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

a = -3; b = 10; c = -13;
Δ = b2-4ac
Δ = 102-4·(-3)·(-13)
Δ = -56
Delta is less than zero, so there is no solution for the equation