你可能感兴趣的试题
5x3+2x 6x3+1 6x3+2x 6x2+2x
x5﹣x4=x 23=6 ﹣(2x+3)=2x﹣3 ﹣x3+3x3=2x3
(﹣2x2)3=﹣6x6 x2•x3=x6 6x4÷3x3=2x x2+x3=2x5
-3x2y·5x2y=2x2y -2x2y3·2x3y=-2x5y4 35x3y2÷5x2y=7xy (-2x-y)(2x+y)=4x2-y2
2x+3y=5xy 3x﹣x=3 2x+3x=5x2 ﹣x2﹣x2=﹣2x2
x・x3=2x3; x3÷x=x2; (x3)2=x5; x3+x3=2x6 .
x2•x3=x6 x5+x5=2x10 (﹣2x)3=8x3 (﹣2x3)÷(﹣6x2)=x
3x-2x=1 3x+2x=5x2 3x·2x=6x 3x-2x=x
3x2﹣5x2=﹣2x 6x2+2x2=3x2 x2+x2=2x2 ﹣2(x﹣2)=﹣2x﹣4
x2•x3=x6 x5+x5=2x10 (﹣2x)3=8x3 (﹣2x3)÷(﹣6x2)=x
5x3+2x 6x3+1 6x3+2x 6x2+2x
x2+x2=x4 x2+x3=2x5 3x﹣2x=1 x2y﹣2x2y=﹣x2y
(x﹣0.2)(0.2﹣x) (﹣2x﹣5)(5﹣2x) (3x﹣1)(2x+1) (﹣2x﹣5)(2x+5)
从5+x=12得x=12+5 从5x+8=4x得5x—4x=8 从10x—2=4—2x得10x+2x=4+2 从2x=3x—5得2x=3x—5=3x—2x=5