9+(3x+1)^2-4(x-1)^2 find answers if you have power
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Answer:
9+(9x^2+6x+1)-4(x^2-2x+1)
=9+(9x^2+6x+1-4x^2-8x+4)
=9+(5x^2-2x-3)
=5x^2-2x+6
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