Combining Like Terms.

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Presentation transcript:

Combining Like Terms

Vocabulary 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?

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

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

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

Let’s see what we have learned! Question 1 Question 2 Question 3 Question 4 Question5 Question 6 Question 7 Question 8 Question 9 Question 10 Question 11 Question 12 Question 13 Question 14 Question 15 Question 16

Try Again! Back to the question

Great Job! Home

Combine the Like Terms and Simplify Question 1 15X+(-4X) A. 19X B. -11X C. 11X D. 15X+(-4X)

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Combine the Like Terms and Simplify Question 2 -12Y+5Y A. -7Y B. 7Y C. -17Y D. 17Y

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Combine the Like Terms and Simplify Question 3 -8b-9b A. -1b B. 17b C. -17b D. 1 b

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Combine the Like Terms and Simplify Question 4 5-X+2 A. 7 B. -7 C. 7+X D. 7-X

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Combine the Like Terms and Simplify Question 5 -3+Y+7 A. -4Y B. 4+Y C. -3Y+7 D. 7Y+3

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Combine the Like Terms and Simplify Question 6 4+a+a A. 4a B. 4a2 C. 4+2a D. 4a+a

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Combine the Like Terms and Simplify Question 7 1.3t - 2.1t A. -3.4t B. -0.8t C. 3.4t D. 0.8t

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Combine the Like Terms and Simplify Question 8 7w+(-2w) A. 5w B. 9w C. 9w2 D. 5w2

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Combine the Like Terms and Simplify Question 9 107a-208a A. -101a B. 101a2 C. 315a D. -315a

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Combine the Like Terms and Simplify Question 10 3X2+2X2-7 A. 12X2 B. 5X2+7 C. 5X2-7 D. -2X2

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Combine the Like Terms and Simplify Question 11 9X3-4X3-2 A. 13X3-2 B. 5X3-2 C. -5X3+2 D. 3x3

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Combine the Like Terms and Simplify Question 12 8b+5-3b A. 10b B. 16b C. 5b+5 D. 5b-5

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Combine the Like Terms and Simplify Question 13 8t2-2t+5t-4 A. 7t B. 11t-4 C. 8t2+3t-4 D. 8t2+7t-4

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Combine the Like Terms and Simplify Question 14 -6w-12-3w+2X A. -19wX B. -21w+2X C. -9w+2x-12 D. -9w-10

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Combine the Like Terms Question 15 4X+6Y-3Y-7 A. 4X+3Y-7 B. 0 C. 20XY D. 4X+9Y-7

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Combine the Like Terms Question 16 -6-3X2+3Y+7 A. X2Y B. -3X2+3Y+1 C. 3X2+3Y+1 D. -3X2+3Y-13