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

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

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Thu Cúc 5 years 2021-07-20T19:25:22+00:00 1 Answers 18 views 0

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  1. thienthanh
    0
    2021-07-20T19:26:42+00:00
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    Answer:

    2(x – 3)^2 – 25.

    Step-by-step 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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