Question: the third one using completing the square 3. 2x2 - 12x + 7 = 0 4. 6x2 + 10x - 8= 0 5. x2 -18x

the third one using completing the square

3. 2x2 - 12x + 7 = 0 4. 6x2 + 10x - 8= 0 5. x2 -18x - 72 = 0

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