(7√5 + 9√3)² = ? What is the solution of this expression.??

Question

(7√5 + 9√3)² = ?

What is the solution of this expression.??

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3 weeks 2021-10-04T01:08:28+00:00 1 Answer 0 views 0

Answers ( )

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    2021-10-04T01:09:46+00:00

    Answer:

    448 + 126root15

    Step-by-step explanation:

    (7root5 + 9root3)^2

    using identity (x + y)^2 = x^2 +2xy +y^2

    so,

    (7root5)^2 + 2 (7root5) (9root3) + (9root3)^2

    (49*5) + (126root15) + (81*3)

    (245) + (126root15) + (243)

    448 + 126root15

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