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Activity Discussion Math Algebraic Expressions and Identities Class 8th

• # Algebraic Expressions and Identities Class 8th

Posted by on June 23, 2023 at 6:08 pm

1. Identify the terms and their coefficients for each of the following expressions:

(i) 7x<sup>2</sup>yz – 5xy

(ii) x<sup>2</sup> + x + 1

(iii) 3x<sup>2</sup>y<sup>2</sup> – 5x<sup>2</sup>y<sup>2</sup>z<sup>2</sup> + z<sup>2</sup>

(iv) 9 – ab + bc – ca

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• ### Satya Vaishnavi

Member
June 23, 2023 at 7:34 pm
1

Below, I attached the photos for the answers.

• ### Satya Vaishnavi

Member
June 23, 2023 at 7:19 pm
0

(i) 7x<sup>2</sup>yz – 5xy

TERMS COEFFICIENTS

=> 7x<sup style=”font-family: inherit; color: var(–bb-body-text-color);”>2</sup>yz 7

=> –5xy -5

(ii) x<sup style=”background-color: var(–bb-content-background-color); font-family: inherit; color: var(–bb-body-text-color);”>2</sup> + x + 1

TERMS COEFFICIENTS

=> x<sup style=””>2</sup> 1

=> x 1

– 1 is a Constant

(iii) 3x<sup style=”background-color: var(–bb-content-background-color); font-family: inherit; color: var(–bb-body-text-color);”>2</sup>y<sup style=”background-color: var(–bb-content-background-color); font-family: inherit; color: var(–bb-body-text-color);”>2</sup> – 5x<sup style=”background-color: var(–bb-content-background-color); font-family: inherit; color: var(–bb-body-text-color);”>2</sup>y<sup style=”background-color: var(–bb-content-background-color); font-family: inherit; color: var(–bb-body-text-color);”>2</sup>z<sup style=”background-color: var(–bb-content-background-color); font-family: inherit; color: var(–bb-body-text-color);”>2</sup> + z<sup style=”font-family: inherit; color: var(–bb-body-text-color);”>2</sup>

TERMS COEFFICIENTS

=> 3x<sup style=”font-family: inherit; color: var(–bb-body-text-color);”>2</sup>y<sup style=”font-family: inherit; color: var(–bb-body-text-color);”>2</sup> 3

=> – 5x<sup style=”font-family: inherit; color: var(–bb-body-text-color);”>2</sup>y<sup style=”font-family: inherit; color: var(–bb-body-text-color);”>2</sup>z<sup style=”font-family: inherit; color: var(–bb-body-text-color);”>2</sup> -5

=> z<sup style=”font-family: inherit; color: var(–bb-body-text-color);”>2</sup> 1

(iv) 9 – ab + bc – ca

TERMS COEFFICIENTS

=> -ab -1

=> bc 1

=> -ca -1

9 is a Constant

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