The given expression written as a simplified polynomial in standard form is -9x² - 24x - 12
<h3>Simplifying Polynomials </h3>
From the question, we are to write the given expression as a simplified polynomial in standard form
The given expression is
(3x+4)^2 is subtracted from 4
That is,
4 - (3x+4)²
Simplifying
4 - (3x+4)(3x+4)
4 - [3x(3x+4) + 4(3x+4)]
4 - [9x² +12x + 12x + 16]
4 - 9x² - 12x - 12x - 16
- 9x² - 12x - 12x - 16 + 4
-9x² - 24x - 12
Hence, the given expression written as a simplified polynomial is -9x² - 24x - 12
Learn more on Simplifying Polynomials here: brainly.com/question/24138077
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