Subtract: (-2x^4-4y^3+4z^3+6)-(-9x^4-3y^3+4z^3+9)

Answer :

Answer:

Step-by-step explanation:

(-2x⁴ - 4y³ + 4z³ + 6) - (-9x⁴ - 3y³ + 4z³ + 9)

= -2x⁴ - 4y³ + 4z³ + 6 + 9x⁴ + 3y³ - 4z³ - 9

= -2x⁴ + 9x⁴   - 4y³ + 3y³   + 4z³ - 4z³ + 6 - 9

= 7x⁴ - y³ + 0 - 3

= 7x⁴ - y³ - 3

Answer:

7x^4-y^3-3

Step-by-step explanation: