1.

`a` और `b` का मान ज्ञात करें यदि `(x-1)` और `(x+),x^(4)+ax^(3)-3x^(2)+2x+b` के गुणनखंड हैं।A. `2,-1`B. `-2,1`C. `-2,2`D. `1,-1`

Answer» Correct Answer - C
If `x-1` & `x+1` are the factors `y` equation the
`x-1=0, x=1`
`implies` Put `x=1`, we get
`1+a-3+2+b=0` ………..i
`a+b=0`
`implies x+1=0, x=-1`
Put `x=-1` we get
`1-a-3-2+b=0`
`b-a=4`…………..ii
after solving i and ii we get
`a=-2, b=2`


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