x2+ax+b when divided by x+3 leaves a remainder of 22 and x2+bx+a when divided by x-3 leaves a remainder of 24 then a+b is?
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Answer:
The value of a+b = - 2.4 + 5.8 = 3.4
Step-by-step explanation:
first dividing by using long division method we get remainder as (see Figure 1)
also given dividing by we get remainder as 22
Then ,
Solving further,
................(1)
Again dividing by using long division method we get remainder as (see Figure 2)
also given dividing by we get remainder as 24
Then ,
.......(2)
Solving (1) and (2),
Multiply equation (2) by 3
..........(3)
Adding equation (1) and (3), We get,
Put value of in (1) to solve for a, We get,
Thus, the value of a+b = - 2.4 + 5.8 = 3.4.
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