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Today, 18:25

In your notebook, set up the following addition using a vertical format and find the sum of the given polynomials.

7b + 3, - 4b + 5, and - 3b + 2

10b + 2

10

0

b - 8

+3
Answers (1)
  1. Today, 20:13
    0
    7b + 3

    -4b + 5

    -3b + 2

    If you add the negatives first by combining like terms, you'll get ...

    (-4b + 5) + (-3b + 2) = - 7b + 7

    Then do ...

    (-7b + 7) + (7b + 3) = 10

    The reason is just 10 is because 7 + 3 = 10 and then the negative 7 and the positive 7 will cancel out and make 0b aka just 0 which leaves you with 10 as your answer.
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