Solve \(1 + \sqrt[3]{ x - 3} = 4\)
MATHEMATICS
WAEC 2023
Solve \(1 + \sqrt[3]{ x - 3} = 4\)
- A. 30
- B. 6
- C. 12
- D. 66
Correct Answer: A. 30
Explanation
\(1 + \sqrt [3]{x-3} = 4\)
= \(\sqrt[3]{x - 3} = 4 - 1\)
\(\sqrt[3]{x - 3} = 3 \)
take the cube of both sides
= x - 3 = 27
x = 27 + 3
∴ x = 30
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