x+1 divide by 3x⁴+0x³+0x²-12x+5
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Step-by-step explanation:
x+1)3x⁴+0x³+0x²-12x+5(3x³-3x²+3x-15
3x⁴+3x³
__________
-3x³+0x²
-3x³-3x²
________
3x²-12x
3x²+3x
_______
-15x+5
-15x-15
_______
20
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