Question

(x + 6)2=


(x+3)²=


(7x + 1)2=

​

Answer 1

Explicación paso a paso:

Formula de binomio al  cuadrado:

(a ± b)² = a² ± 2ab + b²

Resolvamos:

(x+6)² = (x)² + 2(x)(6) + (6)²

(x+6)² = x²+12x+36

(x+3)² = (x)² + 2(x)(3) + (3)²

(x+3)² = x²+6x+9

(7x+1)² = (7x)² + 2(7x)(1) + (1)²

(7x+1)² = 49x²+14x+1