Well, that was tidy. But there is a big problem. Neither one of the roots calculated actually satisfies the original equation -- try it for yourself. This makes sense because how could the positive square root on the left be equal to a clearly negative number on the right? What happened is that the process of squaring the variable (twice in this case) introduced extraneous roots. There is no solution to this equation.
Collect like terms and put into standard form:
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solver was right up to this point
he zigged when he should have zagged...so easy to do in math...he forgot to add the 20x from the right side to the left side.
......so the final equation should be
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: reduced divided terms by 4
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solutions
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both solutions work in original equation.
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