(x+5)(x-5)=x(+5x)

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



(x+5)(x-5)=x(+5x)

We move all terms to the left:

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

We use the square of the difference formula

x^2-(x(+5x))-25=0



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

x(+5x)

We multiply parentheses

5x^2

Back to the equation:

-(5x^2)



We add all the numbers together, and all the variables

-4x^2-25=0

a = -4; b = 0; c = -25;
Δ = b2-4ac
Δ = 02-4·(-4)·(-25)
Δ = -400
Delta is less than zero, so there is no solution for the equation

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