刚才见别人提问分解因式的题目,看到题目的数学试卷,才知道其实是要先把两个多项式求和,然后再分解因式.[ (1/2)x" + 2x - 1 ] + [ (1/2)x" + 4x + 1 ]= x" + 6x= x( x + 6 )[ (1/2)x" + 2x - 1 ] + [ (1/2)x" - 2x ]=...