24[1/8(3x-1+x²)-2/3(x³-2x²+3)-x}
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![24[1/8(3x-1+x²)-2/3(x³-2x²+3)-x}](/uploads/image/z/603076-4-6.jpg?t=24%5B1%2F8%283x-1%2Bx%26%23178%3B%29-2%2F3%28x%26%23179%3B-2x%26%23178%3B%2B3%29-x%7D)
24[1/8(3x-1+x²)-2/3(x³-2x²+3)-x}
24[1/8(3x-1+x²)-2/3(x³-2x²+3)-x}
24[1/8(3x-1+x²)-2/3(x³-2x²+3)-x}
24[1/8(3x-1+x²)-2/3(x³-2x²+3)-x]
=24*1/8(3x-1+x²)-24*2/3(x³-2x²+3)-24*x
=3(3x-1+x²)-16(x³-2x²+3)-24x
=9x-3+3x²-16x³+32x²-48-24x
=-16x³+3x²+32x²+9x-24x-3-48
=-16x³+35x²15x-51