A man walks (12x^2+11x+2) km for (3x+2) hours. What is his speed per hour?
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\((12x^2+11x+2)\) : \((3x+2)=4x\)+1
\(\underline{12x^2+8x}\)
\(3x+2\)
The man walks (4x+1) km per hour. ??
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