Question

(x² + 3x + 1 ) + (2x² + 5x + 4 ) =​

Answer 1

Respuesta:

$(x^2+ 3x + 1 ) + (2x^2+ 5x + 4 )$

R/: $3x^2+8x+5$

Desarrollo:

$=x^2+3x+1+2x^2+5x+4\\=x^2+2x^2+3x+5x+1+4\\=3x^2+3x+5x+1+4\\=3x^2+3x+5x+1+4\\=3x^2+8x+1+4\\=3x^2+8x+5$