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18 June, 17:25

X²+6x+3=0

How do I solve this

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  1. 18 June, 17:52
    0
    The exact roots are - 3 + √6, - 3 - √6

    or - 0.55, - 5.45 to the nearest hundredth.

    Step-by-step explanation:

    x² + 6x + 3 = 0

    We complete the square:

    x^2 + 6x = - 3

    (x + 3) ^2 - 9 = - 3

    (x + 3) ^2 = 6

    x + 3 = + / - √6

    x = - 2 + √6, - 3 - √6.
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