X(2X+1)(2X-3)(X-2)-63
參考答案:原式=x(2x-3)(2x+1)(x-2)-63
=(2x2-3x)(2x2-3x-2)-63
=(2x2-3x)2-2(2x2-3)-63
=(2x2-3x-9)(2x2-3x+7)
=(2x+3)(x-3)(2x2-3x+7)
X(2X+1)(2X-3)(X-2)-63
參考答案:原式=x(2x-3)(2x+1)(x-2)-63
=(2x2-3x)(2x2-3x-2)-63
=(2x2-3x)2-2(2x2-3)-63
=(2x2-3x-9)(2x2-3x+7)
=(2x+3)(x-3)(2x2-3x+7)