If 2x 2 kx - 14 x 2 2x-7 find the value of K - WAEC Mathematics 2001 Question
If \(2x^2 + kx - 14 = (x+2)(2x-7)\), find the value of K
A
-3
B
5
C
9
D
11
correct option: a
\(2x^2 + kx - 14 = (x+2)(2x-7)\
∴2x^2 + kx - 14 = 2x^2 - 3x - 14\)
equating coefficient K = -3
∴2x^2 + kx - 14 = 2x^2 - 3x - 14\)
equating coefficient K = -3
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