Respuesta:
=(x+2y+3)(2)
=(x)(2)+(2y)(2)+(3)(2)
2x+4y+6
(x+2y+3)^2 = x^2+4y^2+9+4xy+12y+6x
(x+2y+3)^2
= (x)^2+(2y)^2+(3)^2+2(x)(2y)+2(2y)(3)+2(x)(3)
= x^2+4y^2+9+4xy+12y+6x
Explicación paso a paso:
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Respuesta:
=(x+2y+3)(2)
=(x)(2)+(2y)(2)+(3)(2)
2x+4y+6
Verified answer
Respuesta:
(x+2y+3)^2 = x^2+4y^2+9+4xy+12y+6x
(x+2y+3)^2
= (x)^2+(2y)^2+(3)^2+2(x)(2y)+2(2y)(3)+2(x)(3)
= x^2+4y^2+9+4xy+12y+6x
Explicación paso a paso: