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What is the product?

[tex]\[
\left(7 x^2 y^3\right)\left(3 x^5 y^8\right)
\][/tex]

A. \(10 x^7 y^{11}\)

B. \(10 x^{10} y^{24}\)

C. \(21 x^7 y^{11}\)

D. [tex]\(21 x^{10} y^{24}\)[/tex]


Sagot :

To find the product of the two terms \((7x^2 y^3)(3x^5 y^8)\), we will follow the rules of multiplying coefficients and adding the exponents of like terms.

1. Multiply the coefficients:
- The coefficients are \(7\) and \(3\).
- Multiplying these gives \(7 \times 3 = 21\).

2. Add the exponents of the \(x\) terms:
- The first term has \(x^2\) and the second term has \(x^5\).
- Adding the exponents: \(2 + 5 = 7\).

3. Add the exponents of the \(y\) terms:
- The first term has \(y^3\) and the second term has \(y^8\).
- Adding the exponents: \(3 + 8 = 11\).

Combining these results, the product of the terms is:

[tex]\[ 21 x^7 y^{11} \][/tex]

Comparing this to the given options:
- \(10 x^7 y^{11}\)
- \(10 x^{10} y^{24}\)
- \(21 x^7 y^{11}\)
- \(21 x^{10} y^{24}\)

The correct answer is:

[tex]\[ 21 x^7 y^{11} \][/tex]