[Solution Library] Which of the following equations are identities? Explain your answers. √9 x=3 √x √9+x=3+√x √x-4=√x-2
Question: Which of the following equations are identities? Explain your answers.
- \(\sqrt{9 x}=3 \sqrt{x}\)
- \(\sqrt{9+x}=3+\sqrt{x}\)
- \(\sqrt{x-4}=\sqrt{x}-2\)
- \(\sqrt{\frac{x}{4}}=\frac{\sqrt{x}}{2}\)
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