a=pir^2+pi(r)(s)

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Solution for a=pir^2+pi(r)(s) equation: 


Simplifying
a = pir2 + pi(r)(s)

Multiply ip * r
a = ipr2 + ipr * s

Multiply ipr * s
a = ipr2 + iprs

Reorder the terms:
a = iprs + ipr2

Solving
a = iprs + ipr2

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Simplifying
a = iprs + ipr2

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