(y¹⁰ + m¹⁰)² - (y¹⁰ - m¹⁰)² - y²m² =(y¹⁰ + m¹⁰ - y¹⁰ + m¹⁰)(y¹⁰ + m¹⁰ + y¹⁰ - m¹⁰) -
- y²m² = 2m¹⁰ * 2y¹⁰ - y²m² = 4y¹⁰m¹⁰ - y²m² = y²m²(4y⁸m⁸ - 1) =
= y²m² * (2y⁴m⁴ - 1) * (2y⁴m⁴ + 1)
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(y¹⁰ + m¹⁰)² - (y¹⁰ - m¹⁰)² - y²m² =(y¹⁰ + m¹⁰ - y¹⁰ + m¹⁰)(y¹⁰ + m¹⁰ + y¹⁰ - m¹⁰) -
- y²m² = 2m¹⁰ * 2y¹⁰ - y²m² = 4y¹⁰m¹⁰ - y²m² = y²m²(4y⁸m⁸ - 1) =
= y²m² * (2y⁴m⁴ - 1) * (2y⁴m⁴ + 1)