Question

3 Halla el area del cuadrado​

Answer 1

Respuesta:

25m²+(20m+4n)n

Explicación paso a paso:

(5m+2n)²=

(5m+2n)*(5m+2n)=

|____*___|___|

5m*5m+5m*2n+2n*5m+2n*2n=

(5m)²+2(5m2n)+2n²

(5m)+(2*5)m2n+2n²

(5m)²+10m2n+2n²

(5m)²+m20n+2n²

(5m)*5m = 25m*m

(2n)² = 4n*n

25m*m+20mn+4n*n

25m²+(20m+4n)n