2x^2+7x+5乘以x^2-2x-3怎么算

2x乘以x乘以x=24,求x! x乘以x+1乘以x+2乘以x+3=3024怎么解? *-----------------------------------------------*| 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 || 1、（x+4）乘以（x+5）2、（x+2）乘以（x+3）乘以（x+4）3、（x+7）乘以（x-6）-（x-2）乘以（x+1）4、（2x-1）乘以（2x+1）乘以（4x²+1）、5、（3x+2y）乘以（2x+3y）-（x-3y）乘以（3x+4y） 2x^2+7x+5乘以x^2-2x-3怎么算 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 x-1乘以x-2分之1,+x-2乘以x-3分之1,+x-3乘以x-4分之1,+.+x-99乘以x-100分之 解方程2乘以0.2x-3乘以0.3x+5乘以0.4x=0.3乘以5 化简0.5x乘以x乘以y乘以x-y乘以x乘以x^2+0.5x乘以x乘以y （x+3）的平方加（x-1）乘以（x+2）减2x乘以（x-5） x^4-4x+4/2x-4乘以(x-2) 其中x=根号5 x^2-9/x^2+6x+9乘以3x^3+9x^2/x^2-3x 其中x=-1/3 3x^3乘以x^9加x^2乘以x^10减2x乘以x^3乘以x^8 （x^4)^2+（x^2）^4-x(x^2)^2乘以x^3-（-x)^3乘以（-x^2）^2乘以（-x)的值 请问2^x乘以3^x等于6^x （2x^3-x +6)乘以(3x^2+ 5x-2)=?、、、用竖式计算? X-2乘以X-3分之2X-5减X-3分之1 [x的平方+5x+3】乘以【x的平方+5x-2】-6=多少? 计算多项式乘以多项式(X+3)(X-2)-X(5-X)