Question

178abd-92\3a^2×5c+(321+4)e
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Answer 1

सबसे अच्छा जवाब · 1 वोट

i. Here, a = 2m and b = 5 (2m – 5)3 = (2m)3 – 3(2m)2 (5) + 3(2m) (5)2 – (5)3 … [(a – b)3 = a3 – 3a2b + 3ab2 – b3] = 8m3 – 3(4m2)(5) ...  

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