5x乘6x等於?

5x乘6x等於?


30x²;



6x方减5x减21等於0


6x²;-5x-21=0
(2x+3)(3x-7)=0
2x+3=0 3x-7=0
∴x1=-3/2
x2=7/3



-5x+6x的得數等於多少


-5X+ 6X= +1X



5.6X-5X=36,問,X等於多少?


X=60~~~~~~~~~