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How to discriminant 5xsquared -45=0 one ,two and complex solution

How to discriminant 5xsquared -45=0 one ,two and complex solution
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How to discriminant 5xsquared -45=0 one ,two and complex solution

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User Macostobu
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5x^2-45=0\\ 5x^2=45\\ x^2=9\\ x=-3 \vee x=3
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User Neal Wang
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