Question

is 2 √x+5+7=4 extraneous?

Answer 1

An extraneous solution is a root of a transformed equation that is not a root of the original equation because it was excluded from the domain of the original equation.

Answer 2

so is it?

Answer 3

\(\bf 2\sqrt{x+5}+7=4?\)

Answer 4

is 2 √x+5+7=4 extraneous?

Answer 5

can't quite see who's the radicand... so, did you mean \(\bf \bf 2\sqrt{x+5}+7=4?\)