Answer:
( 5x^3 - 5x)
8(x-1)
------------
-(8x-1)
Step-by-step explanation:
15x^7 - 45 x^5
---------------------------
3x^4
Factor out 3x^4
3x^4( 5x^3 - 5x)
---------------------------
3x^4
Cancel
( 5x^3 - 5x)
10.
(3x-2) (x-4) - (x-4) (6-5x)
-----------------------------------
(4-x) (8x-1)
Factor out a -1 from the denominator
(3x-2) (x-4) - (x-4) (6-5x)
-----------------------------------
-(x-4) (8x-1)
Cancel x-4
(3x-2) - (6-5x)
-----------------------------------
- (8x-1)
Distribute
(3x-2) - 6+5x
-----------------------------------
- (8x-1)
Combine like terms
(8x-8)
-----------------------------------
- (8x-1)
8(x-1)
------------
-(8x-1)
