If r1and r2 be the remainders when polynomials x3 +2x2 - 5ax-7 and x3+ax2-12x +6 are divided by x+1 and x-2 respectively. If 3r1 +r2=6, find the value of a
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Answer:
a might be 1/3
hope you are sure with the answer
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Inplace of y put x.
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