Question

Resuelve paso a paso
(2x-y+3)(3-2x+5y)=

Answer 1

Respuesta:

4x^2 +12xy +12y -5y^2 +9

Explicación paso a paso:

Multiplicaremos termino por termino :

(2x-y+3)(3-2x+5y) = (2x)(3) + (2x)(-2x)+(2x)(5y) +(-y)(3) + (-y)(-2x)+(-y)(5y) +(3)(3) + (3)(-2x)+(3)(5y)

6x -4x^2 +10xy -3y +2xy-5y^2 + 9 -6x +15y = (6x-6x) -4x^2 +(10xy +2xy) +(-3y+15y) -5y^2 + 9  = -4x^2 +12xy +12y -5y^2 +9