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9 November, 08:06

Solve for x in the equation x2+2x+1=17

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  1. 9 November, 08:07
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    The left side can be written as a square. We can take the square root, then subtract 1.

    ... (x + 1) ² = 17

    ... x + 1 = ±√17

    ... x = - 1 ±√17
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