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Saturday, November 15, 2014
Algebra
Express 35 as a difference of 2 squares
Answer:
ab = {(a + b)/2}^2 - {(a - b)/2}^2
Let a = 35 and b = 1
So, {36/2}^2 - {34/2}^2 = 35 x 1 = 35
or, 35 = 18^2 - 17^2
Answer
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