計算-2x-(3x-3) 計算 -2x-(3x-3)
-2x-(3x-3)
=-2x-3x+3
=3-5x
(2x^3+3x-4)÷(x-3)怎麼算呀
2x^2+6x+21
_____________
x-3)2x^3 +3x-4
2x^3-6x^2
_________
6x^2+3x
6x^2-18x
__________
21x-4
21x-84
________
88
2x^3+3x-4)÷(x-3)=2x^2+6x+21…88
2x=3x-9怎麼算.2分鐘之內回答有分
3x-2x=9
x=9