Solve the equation x - 2 x - 3 12 - JAMB Mathematics 1991 Question
Solve the equation (x - 2) (x - 3) = 12
A
2, 3
B
3, 6
C
-1, 6
D
1, -6
correct option: c
(x - 2) (x - 3) = 12
x2 - 3x - 2x + 6 = 12
x2 - 5x - 6 = 0
(x - 1)(x - 6) = 0
x = -1 or 6
x2 - 3x - 2x + 6 = 12
x2 - 5x - 6 = 0
(x - 1)(x - 6) = 0
x = -1 or 6
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