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

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



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

We move all terms to the left:

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

We use the square of the difference formula

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



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

x(x-5)

We multiply parentheses

x^2-5x

Back to the equation:

-(x^2-5x)



We get rid of parentheses

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

We add all the numbers together, and all the variables

5x-25=0

We move all terms containing x to the left, all other terms to the right

5x=25

x=25/5

x=5

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