Find the value of ‘a’ and ‘b’ , if x²-1 is a factor of ax³+x² -2x+b​

2 thoughts on “Find the value of ‘a’ and ‘b’ , if x²-1 is a factor of ax³+x² -2x+b​”

1. Step-by-step explanation:

   x^2 -1 =0

   => x^2 = 1

   => x = 1

   also x^3 =1 (1×1×1 = 1)

   substituting this value in the polynomial we get:

   a×(1)^3 +(1)^2 -2×1 + b =0

   = a + 1 – 2 +b =0

   => a + -1 +b = 0

   => a + b = 1 ( transposing 1 to RHS)

   Had the second equation being given, we would have got the values of a & b

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2. Answer:

   Step-by-step explanation:

   p(x)=ax^3+x^2+-2x+b

   quotient:- kuch kuch

   answer kuch kuch

   diy

   Reply