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2015-09-25T15:39:23+08:00

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Add the following polynomials.

(4a + 2d) + (3a + d)
Combine like terms.
= 7a + 3d

(9x + 10xy) + (5x - 5xy)
Combine like terms.
= 14x + 5xy

(6k + 85g) + (3k -28g)
Combine like terms.
= 9k + 27g

(15p - 3w) + (8p - 5w)
Combine like terms.
= 23p - 8w

(28h - 41) + (7h - 771)
Combine like terms.
= 35h - 812


0
So bali: (28h - 4L) + (7h - 11L)
28h + 7h = 35H
-4L + (-11L) = -15L
The answer is 35h - 15l
:)
  • Brainly User
2015-09-26T02:52:27+08:00

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Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
In subtracting polynomials, change the sign of each term of the subtrahend, then proceed to addition rule (combining like terms, considering the rule in addition of integers.

Note: I've changed the sign of each term of the the subtrahend.

1)   2a + b - 3c
     -3a  -2b -4c
      -a  -b  -7c

2)  5x + 2y -6z
    -7x + 2y -3z
  -2x  + 4y -9z

3)  7p - 3k + 4m
    -8p + 4k + 2m
   -p  + k  + 6m

4)  5x - 7y + 4z
   -2x + 8y - 2z
   3x  + y  + 2z

5)  9ax  - 4ay  - 8az
    -2ax + 5ay + 9az
    7ax  + ay +  az

(Note:  Addition of polynomials was correctly answered above by the moderator)

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