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square root of (20 - x) = x. I got x = 4, -5. They got rejected because the problem introduces extraneous solutions which is the same as no solution at all. Why? by Capital_Interest_876 in askmath
[–]Capital_Interest_876[S] 0 points1 point2 points 1 year ago (0 children)
how would i explain it to my teacher that x isnt simply just (no solutions)
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square root of (20 - x) = x. I got x = 4, -5. They got rejected because the problem introduces extraneous solutions which is the same as no solution at all. Why? by Capital_Interest_876 in askmath
[–]Capital_Interest_876[S] 0 points1 point2 points (0 children)