The equation 5x2 + 30x + 15 = 0 is being rewritten in vertex form.
Fill in the missing step.
Given 5x2 + 30x + 15 = 0
Step 1 ✔
Step 2 5(x2 + 6x + 9) + 15 − 45 = 0
Step 3 5(x + 3)2 − 30 = 0
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