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( 7x⁹+ 8d⁴ + 9c ) + ( 8×⁴ + 9d⁴ - 6c ), Add ;-;​

Sagot :

Answer:

7x^9+17d^4+3c+8x^4

Step-by-step explanation:

Just distribute the + to ( 8×⁴ + 9d⁴ - 6c )

then combine like terms then solve it