c = 3y² + 4y + 4\nd = -7y² + 3y - 6\nd - c = \nyour answer should be a polynomial in standard form.

Explanation:

Step1: Substitute the expressions for (C) and (D)

(D - C=(-7y^{2}+3y - 6)-(3y^{2}+4y + 4))

Step2: Remove the parentheses

(D - C=-7y^{2}+3y - 6-3y^{2}-4y - 4)

Step3: Combine like - terms

For the (y^{2}) terms: (-7y^{2}-3y^{2}=-10y^{2}) For the (y) terms: (3y-4y=-y) For the constant terms: (-6 - 4=-10)

Answer:

(-10y^{2}-y - 10)