Using the completing-the-square method, rewrite f(x) = x2 + 4x - 1 in

1.	Using the completing-the-square method, rewrite f(x) = x2 + 4x - 1 in vertex form.
Answer» Using the completing-the-square method, rewrite f(x) = x²+ 4x - 1 in vertex form. Solution:

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