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Simplify the following expression:

[tex]\[
\left(3 x^2 - 3\right)\left(2 x^3 - 8\right)
\][/tex]

A. [tex]\(6 x^5 - 30 x^2 - 24\)[/tex]

B. [tex]\(6 x^5 - 30 x^2 + 24\)[/tex]

C. [tex]\(6 x^5 - 6 x^3 - 24 x^2 + 24\)[/tex]

D. [tex]\(6 x^6 - 6 x^3 - 24 x^2 + 24\)[/tex]

E. [tex]\(6 x^5 - 6 x^3 - 24 x^2 - 24\)[/tex]


Sagot :

To simplify the expression [tex]\(\left(3 x^2 - 3\right)\left(2 x^3 - 8\right)\)[/tex], we will use the distributive property (or the FOIL method for binomials). Let's expand and simplify the expression step-by-step.

Given expression:
[tex]\[ (3 x^2 - 3)(2 x^3 - 8) \][/tex]

Step 1: Distribute each term in the first binomial by each term in the second binomial.

[tex]\[ (3 x^2) \cdot (2 x^3) + (3 x^2) \cdot (-8) + (-3) \cdot (2 x^3) + (-3) \cdot (-8) \][/tex]

Step 2: Perform the multiplications.

[tex]\[ 3 x^2 \cdot 2 x^3 = 6 x^5 \][/tex]
[tex]\[ 3 x^2 \cdot -8 = -24 x^2 \][/tex]
[tex]\[ -3 \cdot 2 x^3 = -6 x^3 \][/tex]
[tex]\[ -3 \cdot -8 = 24 \][/tex]

Step 3: Combine all the terms.

[tex]\[ 6 x^5 - 24 x^2 - 6 x^3 + 24 \][/tex]

Step 4: Reorder the terms to match the format in the provided options, typically by descending powers of [tex]\(x\)[/tex]:

[tex]\[ 6 x^5 - 6 x^3 - 24 x^2 + 24 \][/tex]

Finally, identify the simplified expression with the given options:
- [tex]\(6 x^5 - 30 x^2 - 24\)[/tex]
- [tex]\(6 x^5 - 30 x^2 + 24\)[/tex]
- [tex]\(6 x^5 - 6 x^3 - 24 x^2 + 24\)[/tex]
- [tex]\(6 x^6 - 6 x^3 - 24 x^2 + 24\)[/tex]
- [tex]\(6 x^5 - 6 x^3 - 24 x^2 - 24\)[/tex]

The correct simplified expression is:
[tex]\[ 6 x^5 - 6 x^3 - 24 x^2 + 24 \][/tex]

Thus, we select:
[tex]\[ \boxed{6 x^5 - 6 x^3 - 24 x^2 + 24} \][/tex]