Question

Solve: x2-1=3. Verify the result.

Answer 1

Answer:

Step-by-step explanation:

$x^{2} -1=3\\x^{2} =3+1\\x^{2} =4\\x=\sqrt{4} \\x=2$

$verify,\\2=2\\2^{2}-1=3\\\\4-1=3\\3=3$

Hope , it helpful for u

Answer 2

Answer:

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Step-by-step explanation: