WAEC - Mathematics (2000 - No. 35)

Solve the equation \(3y^2\) = 27y
y = o or 3
y = 0 or 9
y = -3 or 3
y = 3 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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