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Find the value of 15^3 – 14^3 in the above pattern.

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Observe that

23 – 13 = 1 + 2 x 1 x 3

33 – 23 = 1 + 3 x 2 x 3

43 – 33 = 1 + 4 x 3 x 3

Find the value of 153 – 143 in the above pattern.

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153 – 143 = 1 + 15 x 14 x 3

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