13. B
14. B
15. B
16. A
17. C
18. D
19. B
20. D
13. The term that has a degree of 5 is 3a⁵b.
14. All of the choices except for B, it d doesn't share a similar exponents in their variables. Since 3x³y²z, and 2x²y³ in letter B.
15. 8a+4a= 12a
16. 13xy+9xy= 4xy
17. Combine like terms:
9m-4n+ 6m-2n = 15m-4n-2n
Combine like terms:
15m-4n-2n= 15m-6n
18. (8a-5b)+(-3a + 7b) = 5a+2b
19. (6a-3b-4c)-(4a + 3b-c) = 2a-6b-3c
20. (10x²-5x+6) + (5x²-4x-3)= 15x²-9x+3
Note: from numbers 17-20, just combine like terms.
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Answers & Comments
ANSWER:
13. B
14. B
15. B
16. A
17. C
18. D
19. B
20. D
EXPLANATION AND SOLUTION:
13. The term that has a degree of 5 is 3a⁵b.
14. All of the choices except for B, it d doesn't share a similar exponents in their variables. Since 3x³y²z, and 2x²y³ in letter B.
15. 8a+4a= 12a
16. 13xy+9xy= 4xy
17. Combine like terms:
9m-4n+ 6m-2n = 15m-4n-2n
Combine like terms:
15m-4n-2n= 15m-6n
18. (8a-5b)+(-3a + 7b) = 5a+2b
19. (6a-3b-4c)-(4a + 3b-c) = 2a-6b-3c
20. (10x²-5x+6) + (5x²-4x-3)= 15x²-9x+3
Note: from numbers 17-20, just combine like terms.