. The expansion of (2x-3y)2 is
A: 2x2 + 3y2 + 6xy
B: 4x2 + 9y2 - 12xy
C: 2x2 + 3y2 - 6xy
D: 4x2 + 9y2 + 12xy
Best Answer
Explanation:
Given,
(2x-3y)2------------------------(1)
Using (a-b)2=a2+b2-2ab
Equation (1) will be;
=(2x)2+(3y)2-2(2x) (3y)
=4x2+9y2-12xy
Final Answer:
Hence, Option (B) is correct i.e. the expansion of (2x-3y)2 is 4x2+9y2-12xy.
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