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Question
Expand the following:
(3x – 2y)2
Sum
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Solution
Given: (3x – 2y)2
Step-wise calculation:
(3x – 2y)2 = (3x)2 – 2 × (3x) × (2y) + (2y)2
(3x – 2y)2 = 9x2 – 12xy + 4y2
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Chapter 3: Expansions - Exercise 3A [Page 64]
