Math, asked by kardebayan3, 1 year ago

please solve this :-​

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Answered by punit2508
0

Answer:

Step-by-step explanation:

If x³-4x²+ax+b is exactly divisible by x-2 and x+1, then x=2,-1 should satisfy the equation.

Putting x=2 in x³-4x²+ax+b

=> 8-16+2a+b =0

=>2a+b = 8

Putting x = -1 in x³-4x²+ax+b

=> -1-4-a+b=0

=> b-a = 5

On solving both the equation-:

a=1

b=6

Answered by Anonymous
0

Answer:

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