Simplify (2x + 5)^2- (2x + 5)^2
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(2x)^2 + (5)^2 + 2 X 2x X 5 - (2x)^2 + (5)^2 + 2 X 2x X 5
4x^2 + 25 + 20x - 4x^2 + 25 + 20x
0 + 50 + 20x
20x = 50
x = 50/20
x = 2.5
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