Question

Multiply (y^2-3)(6y^2-4y+3)

Answer 1

you basically just multiply everything out, first with the first term then again with the second:

when you multiply the second parentheses by y^2 you get 6y^4-4y^3+3y^2

then you multiply the second parentheses by -3 and you get -18y^2+12y-9

then you combine these two answers and get 6y^4-4y^3+3y^2-18y^2+12y-9

when you combine like terms, your final answer is 6y^4-4y^3-15y^2+12y-9