Question

ans fasttttttttttttttttttttttttttt

Answer 1

Answer:

Step-by-step explanation:

a-(3x^2+y^2) (x^2+2y^2)

=3x^2(x^2+2y^2)+y^2(x^2=2y^2)

=3x^4+6(x^2)(y^2)+1(x^2)(y^2)+2y^4

=3x^4+7(x^2)(y^2)+2y^4

b-I dunno this one very sorry but i hope u get some help in the a part