Solve the equation 7y 2 = 3y
MATHEMATICS
WAEC 1990
Solve the equation 7y2 = 3y
- A. y = 3 or 7
- B. y = 0 or 7
- C. y = 0 or 3/7
- D. y = 0 or 9
Correct Answer: C. y = 0 or 3/7
Explanation
7y2= 3y
7y2 - 3y = 0
y(7y - 3) = 0
y = 0 or y = 3/7
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