(1)(x+2)^2-2(x+2)(x-2)(x-2)+(x-2)^2 (2)若2^m=3,4^m=8,则2^3m+2n=( )
来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/27 13:29:37
(1)(x+2)^2-2(x+2)(x-2)(x-2)+(x-2)^2(2)若2^m=3,4^m=8,则2^3m+2n=()(1)(x+2)^2-2(x+2)(x-2)(x-2)+(x-2)^2(2)
(1)(x+2)^2-2(x+2)(x-2)(x-2)+(x-2)^2 (2)若2^m=3,4^m=8,则2^3m+2n=( )
(1)(x+2)^2-2(x+2)(x-2)(x-2)+(x-2)^2 (2)若2^m=3,4^m=8,则2^3m+2n=( )
(1)(x+2)^2-2(x+2)(x-2)(x-2)+(x-2)^2 (2)若2^m=3,4^m=8,则2^3m+2n=( )
1.原式=x²+4x+4-2【(x²-4)(x-2)】+x²-4x+4
=2x²+4x+4-2x³+4x+2x²-8-4x+4
=4x²+2x³
2.∵2^m=3
4^m=8
∴2^3m=(2^m)^3
已知条件貌似没有n啊
∴原式=27+2n
300字读后感 2篇 俄把格式说一下吧:《xxxx》(写题目)主要内容:x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x(写那篇文章的主要内容)思考分析:x x x
*-----------------------------------------------*| 6 4 X | 8 X X | X X 5 || X X X | X X X | X 7 8 || X X X | X X X | X X X ||---------------+---------------+--------------- || X X X | X X X | 5 1 X || X X X | X 6 X | X X X || 8 X X | 3 5 X | 2 X X ||
填九宫格帮帮忙.x x 6 x x 7 x x 98 x x x 3 x 1 x x 9 x x 6 x 5 x 3 x x x 3 x x x x 1 8x x x 9 x 1 x x x2 1 x x x x 6 x x x 6 x 7 x 3 x x 1 x x 9 x 2 x x x 47 x x 8 x x 5 x x
七年级下册政治复习提纲(山东人民出版社)第五单元是 青春的脚步 青春的气息别弄错了啊!格式:X X X X X X X X X 1、X X X X X X X X X X.2、X X X X X X X X X.3、X X X X X X X X X X X.
分解因式----(X*X-X)(X*X-X-2)+1
】x(x+1)+x^2(x-1)
1/(1-x)+1/(1+x)+2/(1+x*x)+4/(1+x*x*x*x)+8/(1-x*x*x*x*x*x*x*x)怎么做
解九宫格题目(X为未知数)9 X 2 X 7 X 8 X XX X 4 X X 9 X 6 X1 3 X 5 X X X X 24 X X 8 5 X X 1 XX 8 9 4 X 1 6 7 XX 1 X X 3 6 X X 88 X X X X 2 X 3 6X 5 X 6 X X 9 X XX X 7 X 4 X 2 X 1
请问这道题咋做 :(x)X (x+1) X (x+2) X (x+3) =360
35道.符号^代表平方.读起来就是(X的平方).1,x^-x-202,x^-9x+203,x^-9x-204,x^+9x+205,x^-18x+326,x^+14x-317,x^+18x+328,x^+14x-329,x^+19x+4810,x^+47x-4811,x^+13x-4812,x^+2x-4813,x^+26x+4814,x^-22x-4815,x^+17x+7216,x^+21x-10017,x^-x-7218,x
x-1/x-2
{2X+1}+{X}
(x^2-1)/x
x^2-1/x
2X+|X+1|
|x-1|+|x-2|
(x+1)/(x+2)
/X+1/+/X+2/