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Find the mistake in the question and explain. show work with correct answer

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User Gushitong
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1 Answer

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The polynomial in standard form with the given solutions is x^2 −4x+4.

To write the polynomial with the given solutions in standard form, you can use the factored form of the polynomial and then expand it.

The solutions are 2 - 3i and its conjugate 2 + 3i.

The factored form of the polynomial is:

(x−(2−3i))(x−(2+3i))

Now, let's expand this expression:

(x−2+3i)(x−2−3i)

Using the distributive property, we can multiply the terms:

x(x−2−3i)−2(x−2−3i)+3i(x−2−3i)

Now, distribute the terms:

x^2 −2x−3ix−2x+4+6i+3ix−6−9i^2

Combine like terms and simplify:

x^2 −4x−5−6i+6i+9

Combine the real and imaginary parts:

x^2 −4x+4

So, the polynomial in standard form with the given solutions is x^2 −4x+4.

User RThomas
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