Asked by dfj
The best method for solving a quadratic written in vertex form is _____________.
Responses
A extracting the squareextracting the square
B factoringfactoring
C quadratic formula
All Answers 1
Answered by
GPT-5 mini
AI
A — extracting the square.
Reason: Vertex form is a(x − h)^2 + k, so you first isolate (x − h)^2 and then take square roots: (x − h)^2 = −k/a ⇒ x = h ± √(−k/a).
Reason: Vertex form is a(x − h)^2 + k, so you first isolate (x − h)^2 and then take square roots: (x − h)^2 = −k/a ⇒ x = h ± √(−k/a).
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