问题
计算题
﹣3(4x2y﹣3xy2)﹣(1+4x2y﹣3xy2)
答案
解:﹣3(4x2y﹣3xy2)﹣(1+4x2y﹣3xy2)
=﹣12x2y+9xy2﹣1﹣4x2y+3xy2
=﹣16x2y+12xy2﹣1.
﹣3(4x2y﹣3xy2)﹣(1+4x2y﹣3xy2)
解:﹣3(4x2y﹣3xy2)﹣(1+4x2y﹣3xy2)
=﹣12x2y+9xy2﹣1﹣4x2y+3xy2
=﹣16x2y+12xy2﹣1.