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How do you solv #sqrtx – 1 = 3#?

Answer 1

Eva Abramson

#x=16#

Using normal methods to solve equations, add 1 to both sides to get

#sqrtx=3+1=4#

Then squaring both sides we get that #x=4^2=16#

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Answer 2

Eva Abramson

To solve the equation sqrt(x) - 1 = 3, we can isolate the square root term by adding 1 to both sides of the equation. This gives us sqrt(x) = 4.

To eliminate the square root, we square both sides of the equation. This yields x = 16.

Therefore, the solution to the equation sqrt(x) - 1 = 3 is x = 16.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.