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Which expression is equivalent to [tex]\left(4 y^2\right)^3\left(3 y^2\right)[/tex]?

A. [tex]12 y^8[/tex]
B. [tex]12 y^{12}[/tex]
C. [tex]192 y^8[/tex]
D. [tex]192 y^{12}[/tex]


Sagot :

To determine which expression is equivalent to [tex]\(\left(4 y^2\right)^3 \left(3 y^2\right)\)[/tex], let's work through it step by step:

1. Simplify [tex]\((4 y^2)^3\)[/tex]:

[tex]\((4 y^2)^3\)[/tex] means raising [tex]\(4 y^2\)[/tex] to the power of 3. This can be represented as:

[tex]\[ 4^3 \cdot (y^2)^3. \][/tex]

- [tex]\(4^3 = 4 \times 4 \times 4 = 64\)[/tex].
- [tex]\((y^2)^3 = y^{2 \times 3} = y^6\)[/tex].

Therefore, [tex]\((4 y^2)^3\)[/tex] simplifies to:

[tex]\[ 64 y^6. \][/tex]

2. Simplify [tex]\(3 y^2\)[/tex]:

Since there is no exponent to multiply, it remains the same:

[tex]\[ 3 y^2. \][/tex]

3. Multiply the simplified expressions together:

Now we multiply [tex]\(64 y^6\)[/tex] by [tex]\(3 y^2\)[/tex]:

[tex]\[ (64 y^6) \cdot (3 y^2). \][/tex]

- Multiply the coefficients [tex]\(64\)[/tex] and [tex]\(3\)[/tex]:

[tex]\[ 64 \times 3 = 192. \][/tex]

- Multiply the variable parts [tex]\(y^6\)[/tex] and [tex]\(y^2\)[/tex]:

[tex]\[ y^6 \cdot y^2 = y^{6+2} = y^8. \][/tex]

4. Combine the results:

Putting it all together, the expression [tex]\(\left(4 y^2\right)^3 \left(3 y^2\right)\)[/tex] simplifies to:

[tex]\[ 192 y^8. \][/tex]

Hence, the equivalent expression is [tex]\(\boxed{192 y^8}\)[/tex].