(2n+5)(n-3)的结果和计算过程
问题描述：
(2n+5)(n-3)的结果和计算过程
答
(2n+5)(n-3)
=2n^2-6n+5n-15
=2n^2-n-15
答
=2(n+3)(n-3)-(n-3)=..
答
(2n+5)(n-3)=2n(n-3)+5(n-3)=2n²-6n+5n-15=2n²-n-15
答
(2n+5)(n-3)
=2n²-6n+5n-15
=2n²-n-15
答
(2n+5)(n-3)
=2n²-6n+5n-15
=2n²-n-15
【循序渐进】团队为你答题,
答
(2n+5)(n-3)
=2n^2+5n-6n-15
=2n^2-n-15