4x^2-1/4x^2

its supposed to equal 15/16ths somehow?Or atleast thats what my teacher told me. Could you show me how this equals 15/16ths?

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- October 10th 2007, 03:53 PM #1

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- October 10th 2007, 04:33 PM #2

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- October 11th 2007, 04:24 AM #3

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- October 11th 2007, 07:42 PM #5

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- October 11th 2007, 07:51 PM #6