What are K and L respectively if \( \frac{1}{2}(3y - 4x)^2 = (8x^2 + kxy + Ly^2) \)

Assessment: JAMB UTME - Mathematics - 1989 Subject: General Mathematics

Question 1 Report

What are K and L respectively if \( \frac{1}{2}(3y - 4x)^2 = (8x^2 + kxy + Ly^2) \)

Answer Details
1 2 (3y - 4x)2 = (8x2 + kxy + Ly2)
1 2 (9y2 - 24xy + 16x2) = 8x2 + kxy + Ly2
9 2 y2 - 12xy) = kxy + Ly2
k = -12 ∴ L = 

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