We read your photo as:

The question as written, 2sqrt((x−1)3) − 4 = 0, leads to x = 1 + [3]4, which is approximately 2.587. This value is not among the given options.

Mathematics

ScanSolve AI Answer

Answer

A) 3\text{A) 3}

Step-by-step solution

4 steps

The question as written, 2(x−1)3−4=02\sqrt{(x-1)^3} - 4 = 0, leads to x=1+43x = 1 + \sqrt[3]{4}, which is approximately 2.587. This value is not among the given options.

Assuming there is a typo in the question and the exponent was intended to be 2 instead of 3, the equation becomes 2(x−1)2−4=02\sqrt{(x-1)^2} - 4 = 0. We will solve this modified equation.

  1. Isolate the square root term.

    2(x−1)2−4=02\sqrt{(x-1)^2} - 4 = 0

    Add 4 to both sides:

    2(x−1)2=42\sqrt{(x-1)^2} = 4
  2. Divide by 2 and simplify the square root.

    (x−1)2=42\sqrt{(x-1)^2} = \frac{4}{2} (x−1)2=2\sqrt{(x-1)^2} = 2

    Recall that a2=∣a∣\sqrt{a^2} = |a|.

    ∣x−1∣=2|x-1| = 2
  3. Solve the absolute value equation.

    This means that x−1x-1 can be 2 or x−1x-1 can be −2-2.

    Case 1:

    x−1=2x-1 = 2

    Add 1 to both sides:

    x=2+1x = 2 + 1 x=3x = 3

    Case 2:

    x−1=−2x-1 = -2

    Add 1 to both sides:

    x=−2+1x = -2 + 1 x=−1x = -1
  4. Compare with the given options.

    The possible values for xx are 3 and −1-1.
    The given options are A) 3 and B) 2.
    Since x=3x=3 is one of the solutions and is listed as option A, this is the most probable intended answer.

    The final answer is A) 3\text{A) 3}.

Was this helpful?

Try one yourself

A new problem that tests the same skill.

Still stuck on this one?

Ask a follow-up, and the answer starts from this question.

Got a different question?Ask your own question
Handwritten step-by-step solution preview

Handwritten Step-by-Step Solution

Get this as a handwritten image on WhatsApp — like a tutor wrote it for you.

Try on WhatsApp