using identities find the value of
[tex](39) {}^{2} [/tex]

using identities find the value of
[tex](39) {}^{2} [/tex]

2 thoughts on “using identities find the value of<br />[tex](39) {}^{2} [/tex]<br />​”

  1. ANSWER :

    [tex] {39}^{2} = {(40 – 1)}^{2} \\ = {40 }^{2} – 2(40)(1) + {1}^{2} \\ = 1600 – 80 + 1 \\ = 1521[/tex]

    FINAL ANSWER :

    1521

    NOTE :

    FORMULA :

    [tex] {(a – b)}^{2} = {a}^{2} – 2ab + {b}^{2} [/tex]

  2. [tex](39) {}^{2} [/tex]

    [tex]1521[/tex]

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