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Express 2x^2-12x-7 in the form a(x+b)^2+c

1 Answer

6 votes

Answer:

2(x - 3)^2 - 25.

Explanation:

2x^2-12x-7

= 2(x^2 - 6x) - 7

= 2[(x - 3)^2 - 9] - 7

= 2(x - 3)^2 - 18 - 7

= 2(x - 3)^2 - 25.

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