factories x³-2x²-x+2
Answers
Answered by
1
Answer:
Factorise x³-2x²-x+2→
x³-2x²-x+2
=> x²(x-2)-1(x-2)
=> (x²-1)(x-2)
(1 can be Expressed as 1²)
=> (x²-1²)(x-2)
(a²-b² = (a+b)(a-b))
=> (x+1)(x-1)(x-2)
The factors of x³-2x²-x+2 are→
(x+1)(x-1)(x-2)
Similar questions