1.

If (2x + 3y + 4)(2x + 3y – 5) is equal to (ax2 + by2 + 2hxy + 2gx + 2fy + c), then what is the value of {3(g – f – c)/ab} ?

A. \(\dfrac{41}{24}\)
B. 1
C. \(\dfrac{31}{24}\)
D. \(\dfrac{25}{24}\)
Answer» B. 1


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