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Which will result in a perfect square trinomial?

(3x – 5)(3x – 5)
(3x – 5)(5 – 3x)
(3x – 5)(3x + 5)
(3x – 5)(–3x – 5)

User Brownmike
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2 Answers

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Final answer:

The expression (3x - 5)(3x - 5) results in a perfect square trinomial. It's the squaring of a binomial which leads to an identical binomial multiplication, producing a trinomial where the first and last terms are squares of the original binomial terms and the middle term is twice the product of the original terms.

Step-by-step explanation:

Perfect Square Trinomial Creation-

The expression that will result in a perfect square trinomial is (3x – 5)(3x – 5). When you multiply this expression, you're essentially squaring the binomial 3x – 5, which is the definition of creating a perfect square trinomial. A perfect square trinomial is one that can be factored into an identical binomial multiplication: (ax – b)(ax – b) = a²x² – 2abx + b².

To demonstrate: (3x – 5)2 = (3x – 5)(3x – 5) = 9x2 – 15x – 15x + 25 = 9x2 – 30x + 25.

In contrast:

  • (3x – 5)(5 – 3x) results in a difference of squares.
  • (3x – 5)(3x + 5) also results in a difference of squares.
  • (3x – 5)(–3x – 5) results in the expansion of a product of differing terms.
User Jmgoyesc
by
8.6k points
3 votes
the answer is (3x – 5)(3x – 5)=(3x – 5)²
so (3x – 5)(3x – 5) forms a perfect square the answer is (3x – 5)(3x – 5)
User Screwnut
by
8.1k points

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