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solve for a a^2+17=42?

Sagot :

Padoruidn

We are given the following equation:

[tex]a^2+17=42[/tex]

Subtract both sides by 17

[tex]a^2=25[/tex]

Take the positive/negative square root of both sides

[tex]a=\pm5[/tex]

This should be your answer. Let me know if you have any questions, thanks!

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