## College Algebra (6th Edition)

$9x^4+12x^2y+4y^2$
FOIL the terms in the parentheses in order to distribute the multiplication. Then combine like terms to simplify. $(3x^2+2y)^2$ $(3x^2+2y)(3x^2+2y)$ $9x^4+6x^2y+6x^2y+4y^2$ $9x^4+12x^2y+4y^2$