Ответ:
1)
(4x-1)(4x+1)+(4x+1)^2=(16x^2-1)+16x^2+8x+1=32x^2+8x
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Ответ:
1)
(4x-1)(4x+1)+(4x+1)^2=(16x^2-1)+16x^2+8x+1=32x^2+8x