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Activity Discussion Math Algebraic Expressions and Identities Class 8th

  • Algebraic Expressions and Identities Class 8th

    Posted by Faraz 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

    Satya Vaishnavi Gumpally replied 1 year, 10 months ago 2 Members · 2 Replies
  • 2 Replies
  • Satya Vaishnavi Gumpally

    Member
    June 23, 2023 at 7:19 pm

    (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

  • Satya Vaishnavi Gumpally

    Member
    June 23, 2023 at 7:34 pm

    Below, I attached the photos for the answers.

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