Division of Polynomial by another Polynomial Long Division
Division of Polynomial by another Polynomial Long Division
Division of a polynomial by a binomial by using long division
For dividing a polynomial by a binomial, we may follow the following steps:
Step I: Arrange the terms of the dividend and divisor in descending order of their degrees.
Step II: Divide the first term of the dividend by the first term of the divisor to obtain the first term of the quotient.
Step III: Multiply the divisor by the first term of the quotient and subtract the result from the dividend to obtain the remainder.
Step IV: Consider the remainder (if any) as dividend and repeat step II to obtain the second term of quotient.
Step V: Repeat the above process till we obtain a remainder which is either zero or a polynomial of degree less than that of the divisor.
Example 1 Divide
Solution: We go through the following steps to perform the division:
Step I: We write the terms of the dividend as well as of divisor in descending order of their degrees. Thus, we write
Step II: We divide the first term of the dividend by the first term
of the divisor and obtain
as the first term of the quotient.
Step III: We multiply the divisor by the first term
we get
of the quotient and subtract the result from the dividend
We obtain
as the remainder.
Step IV : We take as the new dividend and repeat step II to obtain the second term
of the quotient.
Step V : We multiply the divisor by the second term
of the quotient and subtract the result
from the new dividend. We obtain
as the remainder.
Step VI : Now we treat as the new dividend and divide its first term
by the first term
of the divisor to obtain
as the third term of the quotient.
Step VII : We multiply the divisor and the third term
of the quotiemt and subtract the result
from the new dividend. We obtain
as the remainder. Thus, we can say that:
or,
Example: Divide
Solution:
Divide and find the remainder: | |||
| Right Option : C | |||
| View Explanation | |||
Divide | |||
| Right Option : B | |||
| View Explanation | |||
If | |||
| Right Option : B | |||
| View Explanation | |||
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