Solve the equation \(3y^2 = 27y\)
MATHEMATICS
WAEC 2000
Solve the equation \(3y^2 = 27y\)
- A. y = o or 3
- B. y = 0 or 9
- C. y = -3 or 3
- D. y = 3 or 9
Correct Answer: B. y = 0 or 9
Explanation
\(3y^2 = 27y\\
3y^2 - 27y = 0\\
3y(y - 9) = 0\\
3y = 0 or y - 9 = 0\\
y = 0 or y = 9\\
y = 0 or 9\)
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