subtract 3x+4x^2-7from x^4+3x^2-4x+4
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Step-by-step explanation:
x^4 + 3x^2 - 4x + 4 - ( 4x^2 + 3x - 7 )
x^4 + 3x^2 - 4x + 4 - 4x^2 - 3x + 7
x^4 - x^2 - 7x + 11
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