CeejayW769376 CeejayW769376

28-10-2022
Mathematics

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What is the positive solution to the equation x² + 5 = 21?

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KriyaJ32923 KriyaJ32923

28-10-2022

The x² + 5 = 21 can be solved as.

[tex]\begin{gathered} x^2+5=21 \\ x^2=21-5 \\ x^2=16 \\ x=\pm\sqrt[]{16} \\ x=\pm4 \end{gathered}[/tex]

So, the positive solution to the equation x² + 5 = 21 is x=4.

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