Select the polynomial that is a perfect square trinomial. 49×2 − 8x + 16 4a2 − 10a + 25 25b2 − 5b + 10 16x

Question

Select the polynomial that is a perfect square trinomial.

49×2 − 8x + 16
4a2 − 10a + 25
25b2 − 5b + 10
16×2 − 8x + 1

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Josie 2 weeks 2021-09-14T20:02:13+00:00 1 Answer 0

Answers ( )

    0
    2021-09-14T20:03:14+00:00

    Answer:

      16x^2 -8x +1

    Step-by-step explanation:

    The square of a binomial expands as …

      (a +b)^2 = a^2 +2ab +b^2

    So, you need to look for a trinomial with first and last terms that are perfect squares and a middle term that is double the product of the roots of those terms.

    This pattern matches …

      16x^2 -8x +1 = (4x -1)^2

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45:7+7-4:2-5:5*4+35:2 =? ( )