Question

(X+9)2= ?

equis mas nueve elevado a dos= resultado

Answer 1

Respuesta:

(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