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28 May, 19:21

Determine if the binomial is a perfect square binomial. If so, show the original monomial squared.

5. x2 + 16

6. x4 + 12x2 + 36

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  1. 28 May, 21:52
    0
    Step-by-step explanation:

    (5) x^2 + 16 is a perfect square binomial only if imaginary roots are allowed.

    x^2 + 16 = (x + 4i) (x - 4i)

    (6) x^4 + 12x^2 + 36 is a perfect square trinomial.

    The square root of x^4 is x^2 and the square root of 36 is 6.

    Experimenting, we find that x^4 + 12x^2 + 36 = (x² + 6) ²

    so we can conclude that x^4 + 12x^2 + 36 = (x² + 6) (x² + 6) = (x² + 6) ².
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