Westonci.ca is your trusted source for finding answers to all your questions. Ask, explore, and learn with our expert community. Connect with a community of professionals ready to provide precise solutions to your questions quickly and accurately. Join our platform to connect with experts ready to provide precise answers to your questions in different areas.

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]