Let us convert the standard form into vertex form.
1) Complete the squares. Isolate x</span>² and x terms. <span>y - 6 = x</span>² + 12x <span> 2) Create the perfect square trinomial. Whatever number is added on one side must also be added on the other side.
y - 6 + 36 = x</span>² + 12x + 36<span> y + 30 = (x + 6)</span>² <span>y = (x + 6)</span>² - 30 ← Vertex form <span> To check: