From sum of (4+3x)and (5-4x+2x²)
Subtract the sum of (3x²-5x)+(-x²+2x+5)
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Step-by-step explanation:
(4+3x+5-4x+2x²) - (3x²-5x-x²+2x+5)
(2x²-x+9) - (2x²-3x+5)
-x+3x+4
2x+4 = 2(x+2)
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