Answer:
x³-5x²+4x
Step-by-step explanation:
1. Expand.
(x²-4x)(x-1)
2. Use the FOIL method: (a+b)(c+d)=ac+ad+bc+bd.
x³-x²-4x²+4x
3. Collect like terms
x³+(-x²-4x²)+4x
4. Simplify
Hope this helps, have a BLESSED and wonderful day! c: