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Question

If x32x2x+2=(xa)(x+b)(xc).Find a+b+c

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Solution

x32x2x+2=x2(x2)1(x2)=(x21)(x2)=(x1)(x+1)(x2)compareitwith(xa)(x+b)(xc),wegeta=1,b=1andc=2Hencea+b+c=4


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