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Expand using appropriate identities:(2x – 5d)2 |
Answer» (2x – 5d)2 Comparing with (a – b)2, we get a = 2x b = 5d. (a – b)2 = a2 – 2ab + b2 (2x – 5d)2 = (2x)2 – 2(2x)(5d) + (5d)2 = 2x2 – 20 xd + 52d2 = 4x2 – 20 xd + 25d2 |
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