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In a term with a number and a variable, the number is called the coefficient .

1. In a term with a number and a variable, the number is called the coefficient . Example: 2X + 4Y 3 Which number is the coefficient of X?. Like terms have the same variable raised to the same power. Example: 5X and -4X 2Y 2 and Y 2. 3X 2 +4X+8 -7x 2

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In a term with a number and a variable, the number is called the coefficient .

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  2. In a term with a number and a variable, the number is called the coefficient. Example: 2X + 4Y3 Which number is the coefficient of X?

  3. Like terms have the same variable raised to the same power. Example: 5X and -4X 2Y2 and Y2

  4. 3X2 +4X+8-7x2 3X2 and -7x2 are like terms. Name the like terms in the expression. -2Y2 +5X-3+1x

  5. First identify the like terms. 8X2-2X+5X-4 • Next combine them. 8X2+3X-4

  6. Try Again! Back to the question

  7. Great Job! Home

  8. Question 1 15X+(-4X) A. 19X B. -11X C. 11X D. 15X+(-4X)

  9. Try Again! Back to the question

  10. Question 2 -12Y+5Y A. -7Y B. 7Y C. -17Y D. 17Y

  11. Try Again! Back to the question

  12. Question 3 -8b-9b A. -1b B. 17b C. -17b D. 1 b

  13. Try Again! Back to the question

  14. Question 4 5-X+2 A. 7 B. -7 C. 7+X D. 7-X

  15. Try Again! Back to the question

  16. Question 5 -3+Y+7 A. -4Y B. 4+Y C. -3Y+7 D. 7Y+3

  17. Try Again! Back to the question

  18. Question 6 4+a+a A. 4a B. 4a2 C. 4+2a D. 4a+a

  19. Try Again! Back to the question

  20. Question 7 1.3t - 2.1t A. -3.4t B. -0.8t C. 3.4t D. 0.8t

  21. Try Again! Back to the question

  22. Question 8 7w+(-2w) A. 5w B. 9w C. 9w2 D. 5w2

  23. Try Again! Back to the question

  24. Question 9 107a-208a A. -101a B. 101a2 C. 315a D. -315a

  25. Try Again! Back to the question

  26. Question 10 3X2+2X2-7 A. 12X2 B. 5X2+7 C. 5X2-7 D. -2X2

  27. Try Again! Back to the question

  28. Question 11 9X3-4X3-2 A. 13X3-2 B. 5X3-2 C. -5X3+2 D. 3x3

  29. Try Again! Back to the question

  30. Question 12 8b+5-3b A. 10b B. 16b C. 5b+5 D. 5b-5

  31. Try Again! Back to the question

  32. Question 13 8t2-2t+5t-4 A. 7t B. 11t-4 C. 8t2+3t-4 D. 8t2+7t-4

  33. Try Again! Back to the question

  34. Question 14 -6w-12-3w+2X A. -19wX B. -21w+2X C. -9w+2x-12 D. -9w-10

  35. Try Again! Back to the question

  36. Question 15 4X+6Y-3Y-7 A. 4X+3Y-7 B. 0 C. 20XY D. 4X+9Y-7

  37. Try Again! Back to the question

  38. Question 16 -6-3X2+3Y+7 A. X2Y B. -3X2+3Y+1 C. 3X2+3Y+1 D. -3X2+3Y-13

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