Question

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 ?

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Answer 1

(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

Answer 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