(a + b)² = a² + 2a + b²
(1 + 3x²)² =
1² + 2(1)(3x²) + (3x²)² =
1 + 6x² + 3²x⁴ =
1 + 6x² + 9x⁴
[tex]solucion[/tex]
(1 + 3x²)² = 1 + 6x² + 9x⁴
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(a + b)² = a² + 2a + b²
(1 + 3x²)² =
1² + 2(1)(3x²) + (3x²)² =
1 + 6x² + 3²x⁴ =
1 + 6x² + 9x⁴
[tex]solucion[/tex]
(1 + 3x²)² = 1 + 6x² + 9x⁴