1.

7x²-4x+5,2x-3x²-1 and 9+5x²-x add​

Answer»

Answer:

________

7x^2 - 4x + 5

-3X^2 + 2x - 1

+ 5x^2 - X + 9

_______________

9x^2 - 3x + 13

________________



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