Add 5x + 3x 8,4x+7-2X and 6-5x+4 x²
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Answer:
4x² + 5x + 21
Step-by-step explanation:
5x + 3x + 8 + 4x + 7 - 2x + 6 - 5x + 4x²
= 4x² + 5x + 3x + 4x - 2x - 5x + 6 + 7 + 8
= 4x² + 12x - 7x + 21
= 4x² + 5x + 21
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