If I rewrite an equation
$$\sqrt{a} + b = 10$$
to
$$a = 100 - 20b + b^2,$$
how would I call that transformation to explicitly express $a$?
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Is "solving for $a$ and expanding the square using the binomial theorem" precise enough for your needs? – t.b. May 11 '11 at 08:46
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2I think "solving for a" is what I was looking for. Can you make that an answer? :) – justAnovice May 11 '11 at 08:47
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1One could also say you're isolating $a$. – J. M. ain't a mathematician Jul 27 '12 at 00:33
2 Answers
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Reposting my comment on the OP's request:
Is "solving for $a$ and expanding the square using the binomial formula" precise enough for your needs?
t.b.
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1Just solving for $a$, without any other transformation, would be $a = (10 - b)^2$. – Kevin Reid May 12 '11 at 00:36
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