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How to Add and Subtract Polynomials

Step By Step

Whether you want to add polynomials or subtract them, you follow a similar set of steps.
Example 1
Let's find the sum of the following two polynomials
(3y5 − 2y + y4 + 2y3 + 5) and (2y5 + 3y3 + 2+ 7)

Subtracting Polynomials

Example 2
Let's find the difference of the same two polynomials
(3y5 − 2y + y4 + 2y3 + 5) and (2y5 + 3y3 + 2+ 7)

how to subtract polynomials

Practice Problems
Problem 1 ) Add the following polynomials:
(x3+ 5x + 3x2 +2) and (4x3 + 3x2+ 14)
Step 1
Problem 2 ) Find the sum of following polynomials:
(2x3+ 5x4 + 3x2 +12) and (7x3 + 4x2+ 3)
Step 1
Problem 3 ) Subtract following polynomials:
(3x2+ 2x3+ 12x7 + 12) - ( 4x2+ 3 - 11x3 )
Answer
Problem 4 ) Add following polynomials:
(2x8 + 6x7+ 3x9 + 5) + ( 5x2 + 4 + 9x3 )
Answer