a+a2=a(a+1)

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Solution for a+a2=a(a+1) equation: 



a+a2=a(a+1)

We move all terms to the left:

a+a2-(a(a+1))=0

We add all the numbers together, and all the variables

a^2+a-(a(a+1))=0



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

a(a+1)

We multiply parentheses

a^2+a

Back to the equation:

-(a^2+a)



We get rid of parentheses

a^2-a^2+a-a=0

We add all the numbers together, and all the variables

=0

a=0/1

a=0

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