Subtract the sum of 2a+3b , a-2b+c and 4a+2b -5 from 6a -4b +8c+7
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(x+ y + z) (x2 + y2+ z2– xy – yz – zx) = x3 + y3 + z3 – 3xyz Here, x = 2a, y = 3b and z = – 4c ∴ (2a + 3b - 4c)(4a2 +9b2 + 16c2 - 6ab + 12bc + 8ca) = (2a)3 + (3b)3 + (-4c)3 - 3 x (2a) x (3b) x (-4c) = 8a3 + 27b3 - 64c3 + 72abc.Read more on Sarthaks.com - https://www.sarthaks.com/980596/find-the-product-2a-3b-4c-4a-2-9b-2-16c-2-6ab-12bc-8ca
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gool molning
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