Algebraic expressions

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Combining like terms

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mathematics

8º - Secundaria

like terms

Edad recomendada: 12 años

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María Teresa Santamaria

Colombia

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Algebraic expressionsVersión en línea Combining like terms por María Teresa Santamaria 1 Based on the information in the video, what is the answer of 7p + 9p? a 16 b 16p c 16p^2 d 16pp 2 How can you identify like terms? a they have the same sign and coeficient b they have just the same letters c they have the same letters with the same exponents d they have the same sign 3 How can you combine or reduce like termss in an algebraic expressions? a adding the coeficients of all the terms in the algebraic expression. b substracting the coeficients of all the terms in the algebraic expression. c identify like terms in the expressions and add the coeficients of them 4 What is a like term of - 72 d^2 p3? a 6dp b 9d^2 p c 13 d p^3 d 32 d^2 p^3 5 What is the answer of 3a - 7 a^2? a - 4a b 3a - 7 a^2 c - 4a^2 d 10 a ^3 e - 10a ^3 6 What is the expression equivalent to 2x - 5ax + 7x + 20ax - 5a^2 x? a 9x +15ax- 5a^2 x b 9x - 25ax c 2x - 15ax - 5a^2 x d 9x -20ax 7 Suppose that you have 9 pens, 20 pencils, 3 blue colors and 2 red colors. If you use the letter p to represent pens, pc to represent pencils, bc to represent blue colors, and rc to represent red colors. What is the algebraic expression that represent what you have? a 9p + 20pc + 3bc + 2 rc b 29p + 5c c 9 pc + 20 p + 2 rc + 3 bc d 20 pc + 9 p + 3 rc + 2 bc Feedback 1 It is better to pay more attention to the explanation in the video. 2 Consider the main characteristics of like terms. 3 Remember the way you solve operations with numbers 4 Consider the main characteristics of like terms. 5 Consider how to identify like terms. 6 Remember the way you solve operations with numbers 7 Consider that you have different objects.

Algebraic expressionsVersión en línea

Combining like terms

por María Teresa Santamaria

Based on the information in the video, what is the answer of 7p + 9p?

16p

16p^2

16pp

How can you identify like terms?

they have the same sign and coeficient

they have just the same letters

they have the same letters with the same exponents

they have the same sign

How can you combine or reduce like termss in an algebraic expressions?

adding the coeficients of all the terms in the algebraic expression.

substracting the coeficients of all the terms in the algebraic expression.

identify like terms in the expressions and add the coeficients of them

What is a like term of - 72 d^2 p3?

6dp

9d^2 p

13 d p^3

32 d^2 p^3

What is the answer of 3a - 7 a^2?

- 4a

3a - 7 a^2

- 4a^2

10 a ^3

- 10a ^3

What is the expression equivalent to 2x - 5ax + 7x + 20ax - 5a^2 x?

9x +15ax- 5a^2 x

9x - 25ax

2x - 15ax - 5a^2 x

9x -20ax

Suppose that you have 9 pens, 20 pencils, 3 blue colors and 2 red colors. If you use the letter p to represent pens, pc to represent pencils, bc to represent blue colors, and rc to represent red colors. What is the algebraic expression that represent what you have?

9p + 20pc + 3bc + 2 rc

29p + 5c

9 pc + 20 p + 2 rc + 3 bc

20 pc + 9 p + 3 rc + 2 bc

Feedback

It is better to pay more attention to the explanation in the video.

Consider the main characteristics of like terms.

Remember the way you solve operations with numbers

Consider the main characteristics of like terms.

Consider how to identify like terms.

Remember the way you solve operations with numbers

Consider that you have different objects.

Algebraic expressions

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Algebraic expressionsVersión en línea

por María Teresa Santamaria

Based on the information in the video, what is the answer of 7p + 9p?

How can you identify like terms?

How can you combine or reduce like termss in an algebraic expressions?

What is a like term of - 72 d^2 p3?

What is the answer of 3a - 7 a^2?

What is the expression equivalent to 2x - 5ax + 7x + 20ax - 5a^2 x?

Suppose that you have 9 pens, 20 pencils, 3 blue colors and 2 red colors. If you use the letter p to represent pens, pc to represent pencils, bc to represent blue colors, and rc to represent red colors. What is the algebraic expression that represent what you have?

Feedback