Question

b) (3x2y - 6xy) (3x2y - 2xy) =​

Answer 1

Respuesta:

(3x2y−6xy)(3x2y−2xy)

=(3x2y+−6xy)(3x2y+−2xy)

=(3x2y)(3x2y)+(3x2y)(−2xy)+(−6xy)(3x2y)+(−6xy)(−2xy)

=9x4y2−6x3y2−18x3y2+12x2y2

=9x4y2−24x3y2+12x2y2