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Cual es el trinomio cuadrado perfecto de (× + 9)²?

Cual es el trinomio cuadrado perfecto de (× + 9)²? Cual es el trinomio cuadrado perfecto de (3× + 1)²? Cual es el trinomio cuadrado perfecto de (2m + 5)² ? = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =.

En resumen

(x + 9)² = x² + 2(x)(9) + 9² = x² + 18x + 81 (3x + 1)² = (3x)² + 2(3x)(1) + 1² = 9x² + 6x + 1 (2m + 5)² = (2m)² + 2 (2m)(5) + 5² = 4m² + 20m + 25.

Mejor respuesta

Nelandres2002
2

(x + 9)² = x² + 2(x)(9) + 9² = x² + 18x + 81

(3x + 1)² = (3x)² + 2(3x)(1) + 1² = 9x² + 6x + 1

(2m + 5)² = (2m)² + 2 (2m)(5) + 5² = 4m² + 20m + 25.

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Respuesta 2

Barbuda
0

(x + 9)² = x² + 2(x)(9) + 9² = x² + 18x + 81

(3x + 1)² = (3x)² + 2(3x)(1) + 1² = 9x² + 6x + 1

(2m + 5)² = (2m)² + 2 (2m)(5) + 5² = 4m² + 20m + 25.