High School

Multiply the two terms displayed below together:

[tex]4.5x[/tex] and [tex]3x[/tex]

A. [tex]7.5 \cdot x = 7.5x[/tex]

B. [tex]7.5 \cdot x^2 = 7.5x^2[/tex]

C. [tex]13.5 \cdot x = 13.5x[/tex]

D. [tex]13.5 \cdot x^2 = 13.5x^2[/tex]

Answer :

To multiply the terms [tex]\(4.5x\)[/tex] and [tex]\(3x\)[/tex] together, follow these steps:

1. Multiply the coefficients: Take the numerical parts (coefficients) of each term and multiply them together. In this case, multiply [tex]\(4.5\)[/tex] and [tex]\(3\)[/tex].

[tex]\[
4.5 \times 3 = 13.5
\][/tex]

2. Add the exponents of [tex]\(x\)[/tex]: Each term has a variable [tex]\(x\)[/tex] with an implicit exponent of 1. When multiplying terms with the same base, you add their exponents. So, add the exponents of [tex]\(x\)[/tex]:

[tex]\[
1 + 1 = 2
\][/tex]

3. Combine the results: Combine the product of the coefficients and the sum of the exponents to form the final term. This gives you:

[tex]\[
13.5x^2
\][/tex]

Thus, the result of multiplying [tex]\(4.5x\)[/tex] and [tex]\(3x\)[/tex] together is [tex]\(13.5x^2\)[/tex].