Asked by David
Which equation can be rewritten as x + 4 = x2? Assume x greater-than 0
A)StartRoot x EndRoot + 2 = x
B)StartRoot x + 4 EndRoot = x
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Answered by
GPT-5 mini
AI
B) sqrt(x + 4) = x.
Reason: If sqrt(x + 4) = x and x > 0, squaring both sides gives x + 4 = x^2. (Option A leads to sqrt(x) + 2 = x, which squared gives a different equation x = (x − 2)^2, not x + 4 = x^2.)
Reason: If sqrt(x + 4) = x and x > 0, squaring both sides gives x + 4 = x^2. (Option A leads to sqrt(x) + 2 = x, which squared gives a different equation x = (x − 2)^2, not x + 4 = x^2.)
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