Find the best answers to your questions at Westonci.ca, where experts and enthusiasts provide accurate, reliable information. Get quick and reliable solutions to your questions from knowledgeable professionals on our comprehensive Q&A platform. Explore comprehensive solutions to your questions from a wide range of professionals on our user-friendly platform.

Simplify [tex]\left(3 x^2 - 3 + 9 x^3\right) - \left(4 x^3 - 2 x^2 + 16\right)[/tex]

A. [tex]x^3 - 5 x^2 + 25[/tex]
B. [tex]-x^3 + x^2 - 25[/tex]
C. [tex]5 x^3 + x^2 + 13[/tex]
D. [tex]5 x^3 + 5 x^2 - 19[/tex]


Sagot :

Certainly! Let's simplify the given expression step by step. We start with:

[tex]\[ \left(3x^2 - 3 + 9x^3\right) - \left(4x^3 - 2x^2 + 16\right) \][/tex]

First, we distribute the negative sign across the terms in the second polynomial:

[tex]\[ = 3x^2 - 3 + 9x^3 - 4x^3 + 2x^2 - 16 \][/tex]

Next, we combine like terms. We start by combining the [tex]\(x^3\)[/tex] terms:

[tex]\[ 9x^3 - 4x^3 = 5x^3 \][/tex]

Then, we combine the [tex]\(x^2\)[/tex] terms:

[tex]\[ 3x^2 + 2x^2 = 5x^2 \][/tex]

Finally, we combine the constant terms:

[tex]\[ -3 - 16 = -19 \][/tex]

Putting all the simplified terms together, we get:

[tex]\[ 5x^3 + 5x^2 - 19 \][/tex]

Therefore, the simplified expression is:

[tex]\[ \boxed{5x^3 + 5x^2 - 19} \][/tex]