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When the temperature is 22 °C, there is a gap of 10 x 103 m separating their ends No expansion is possible at the other end of either rod At what temperature will the two bars touch?(a b) 3 = a 3 3 a 2 b 3 a b 2 b 3 (22) a 1/2 a 1/2 = a (23) a 1/3 a 1/3 a 1/3 = a Factors expansion;(a b) 3 = a 3 3a 2 b 3ab 2 b 3 or (a b) 3 = a 3 b 3 3ab(a b) Practice Problems Problem 1 Expand (x 1) 3 Solution (x 1) 3 is in the form of (a b) 3 Comparing (a b) 3 and (x 1) 3, we get a = x b = 1 Write the formula / expansion for (a b) 3 (a b) 3 = a 3 3a 2 b 3ab 2 b 3 Substitute x for a and 1 Gibe The Expansion Of A B 3 Brainly In (a+b+c)^3 expansion