Question

how to solve this of class 9

Answer 1

one suggestion for you
please increase your points more than 30 or decrease question number

Answer 2

1) x²-2x²-x+2
= x²(x-2)-(x-2)
=(x-2)(x²-1)
=(x-2) (x-1) (x +1)
And.(x-2)(x-1)(x+1)