3x²-2x+5-6x²+3x-9
1个回答
3x²-2x+5-6x²+3x-9
=-3x²+x-4
相关问题
3x^2-2x+5-6x^2+3x-9
x²-9/x²+2x-3乘3x²-x-2/x²-5x+6,
1)2x+8=16 (2)x/5=10 (3)x+7x=8 (4)9x-3x=6 (5)6x-8=4 (6)5x+x=9
(X^3-1)/(X-1)= (9x^3-6X^2-5X+2)/(3X-1)=
2x^5-3x^3x√3+√23a^6x^3-9ax^5
21-x/2+x/3-2x/5=x x+2/3+x=10-2x/7 9-3x-2/5=7-3x/6
(x-2)(x平方-6x-9)=x(x-5)(x-3)
若2!=2x3,=3x4x5,=5x6x7x8x9 ,那么4!/6!
若x=3/x,则[(x^2-6x+9)/(x+3)]÷[﹙x-3﹚/﹙x^2+6x+9﹚]=?
(1)5+2x=1 (2)8-x=3x+2 (3)10x-3=9 (4)6x-7=4x-5 (5)1/2x-6=3/4x