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22 August, 22:45

Rewrite the equation in terms of u. (u^2 + 3) + u - 2 = 0 u^2 + u - 2 = 0 (u^2 + 9) + u - 2 = 0 u^2 + u + 1 = 0

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  1. 22 August, 22:57
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    The solutions of the original equation are x=-5 and x=-2
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