Adding and subtracting polynomials

d - c = -10y^2 -y -10

Step-by-step explanation:

-7y^2 - 3y^2 = - 10y^2

3y- 4y = -1y or -y

-6 - 4 = -10

-10y^2 - y - 10

Step-by-step explanation:

First put them in order:

(-7y^2+3y-6)-(3y^2+4y+4)

Then distribute the negative to the second set of parentheses:

-7y^2+3y-6-3y^2-4y-4

Then simplify leaving you with the answer

-10y^2 - y - 10

i can't see the picture : /