问题描述: (x^2+4x+16)(x^2+9x+16)-6x^2 求因式分解, 1个回答 分类:数学 2014-10-27 问题解答: 我来补答 (x^2+4x+16)(x^2+9x+16)-6x^2=[(x²+16)+4x][(x²+16)+9x]-6x²=(x²+16)²+13x(x²+16)+36x²-6x²=(x²+16)²+13x(x²+16)+30x²=[(x²+16)+10x][(x²+16)+3x]=(x²+10x+16)(x²+3x+16) 展开全文阅读