5x(2x+1)=5x-10

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Solution for 5x(2x+1)=5x-10 equation: 



5x(2x+1)=5x-10

We move all terms to the left:

5x(2x+1)-(5x-10)=0

We multiply parentheses

10x^2+5x-(5x-10)=0

We get rid of parentheses

10x^2+5x-5x+10=0

We add all the numbers together, and all the variables

10x^2+10=0

a = 10; b = 0; c = +10;
Δ = b2-4ac
Δ = 02-4·10·10
Δ = -400
Delta is less than zero, so there is no solution for the equation

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