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Which expression is equivalent to the given expression [tex]\((-4ab)^3\)[/tex]?

A. [tex]\(-4a^3b^3\)[/tex]

B. [tex]\(-12a^3b^3\)[/tex]

C. [tex]\(-4ab^3\)[/tex]

D. [tex]\(-64a^3b^3\)[/tex]


Sagot :

To find the expression equivalent to [tex]\((-4ab)^3\)[/tex], we need to expand and simplify the given expression step by step.

1. First, let's rewrite the expression [tex]\((-4ab)^3\)[/tex] using the properties of exponents.
2. According to the properties of exponents, [tex]\((xy)^n = x^n \cdot y^n\)[/tex]. Applying this to each part of the expression, we get:
[tex]\[ (-4ab)^3 = (-4)^3 \cdot (a)^3 \cdot (b)^3 \][/tex]

3. Next, calculate each term separately:
[tex]\[ (-4)^3 = -4 \cdot -4 \cdot -4 = -64 \][/tex]
[tex]\[ a^3 = a^3 \][/tex]
[tex]\[ b^3 = b^3 \][/tex]

4. Combining these results, we have:
[tex]\[ (-4)^3 \cdot a^3 \cdot b^3 = -64 \cdot a^3 \cdot b^3 \][/tex]

Therefore, the expression equivalent to [tex]\((-4ab)^3\)[/tex] is:
[tex]\[ -64a^3b^3 \][/tex]

Among the given options:
- [tex]\(-4a^3b^3\)[/tex]
- [tex]\(-12a^3b^3\)[/tex]
- [tex]\(-4ab^3\)[/tex]
- [tex]\(-64a^3b^3\)[/tex]

The correct option is [tex]\(-64a^3b^3\)[/tex].
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