2 If possible, write 7 - 4x 6x² as a linear combination of -2 - x + x², 2 x + x², 2x² and 1 + x. Otherwise, enter DNE in all answer blanks. 7- 4x - 6x² = (2 − x²)+ - (−2 − x + x²)+ (1 + x).

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