find value of a^2+2ab+b^2,if a=69,b=31 ?

Question

find value of a^2+2ab+b^2,if a=69,b=31 ?

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Arianna 3 months 2021-11-06T14:56:18+00:00 2 Answers 0 views 0

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    0
    2021-11-06T14:57:19+00:00

    Step-by-step explanation:

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    0
    2021-11-06T14:58:15+00:00

    Answer:

    this is an identity based question

    identity: (a+b)^2=a^2+2ab+b^2

    therefore ans will be (69+31)^2=100^2=10000

    you can prove it like this

    (a+b)(a+b)

    open the brackets you will get a^2+2ab+b^2

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