Find the “missing terms” in the polynomial problems. answers will have multiple terms. 1. (c^3 + c^2 - 5) + ( ) = c^2 + 2c - 7 2. (2d^2 + d) - ( ) = - d^3 + 3d - 1 3. ( ) - (2x^4 - 2x^2 - 3) = x^4 + x^3 - 2x^2 + x