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X^2+1 factor of x^4+x^3+8x^+ax+b find value …

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X^2+1 factor of x^4+x^3+8x^+ax+b find value of a and b

Posted by Gopal Singh 6 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Radhika Saini 6 years, 1 month ago

x^2+x+7 ____________________ x^2+1√x^4+x^3+8x^2+ax+b x^4+ 0 + x^2 - - - _____________________ x^3+7x^2+ax+b x^3+ 0 + x - - - ______________________ 7x^2 + ax-x+b 7x^2 + 7 - - _______________________ ax - x + b -7 _______________________ Now, we take common from the remainder. Since, x^2+ 1 is a factor. Therefore, Remainder= 0 x( a-1) + b -7= 0 i.e. a-1=0 ; b-7=0 a= 1 ; b= 7

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CBSE > Class 10 > Mathematics

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CBSE > Class 10 > Mathematics