Which equation is y is equal to negative 3 x squared minus 12 x minus 2 rewritten in vertex form?

Factor −3 from the quadratic and linear terms: y = −3(x² + 4x) − 2. Complete the square inside the parentheses: x² + 4x = (x + 2)² − 4, so y = −3[(x + 2)² − 4] − 2 = −3(x + 2)² + 10. Therefore, the vertex form is “y is equal to negative 3 times (x plus 2) squared plus 10.”

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