Connect with knowledgeable individuals and get your questions answered on IDNLearn.com. Get the information you need from our community of experts who provide accurate and comprehensive answers to all your questions.

Multiply.

(a) [tex]$x^2 - 2x - 3$[/tex] by [tex]$5x$[/tex]


Sagot :

Sure, let's walk through the steps to multiply the expression [tex]\(x^2 - 2x - 3\)[/tex] by [tex]\(5x\)[/tex].

1. Write down the expressions:
- The first expression is [tex]\(x^2 - 2x - 3\)[/tex].
- The second expression is [tex]\(5x\)[/tex].

2. Apply the distributive property:
To multiply [tex]\(x^2 - 2x - 3\)[/tex] by [tex]\(5x\)[/tex], we use the distributive property, distributing [tex]\(5x\)[/tex] to each term in the polynomial [tex]\(x^2 - 2x - 3\)[/tex]:

[tex]\[ (x^2 - 2x - 3) \times 5x = (x^2 \times 5x) + (-2x \times 5x) + (-3 \times 5x) \][/tex]

3. Perform the individual multiplications:
- Multiply the first term: [tex]\(x^2 \times 5x = 5x^3\)[/tex].
- Multiply the second term: [tex]\(-2x \times 5x = -10x^2\)[/tex].
- Multiply the third term: [tex]\(-3 \times 5x = -15x\)[/tex].

4. Combine the results:
Now, put them all together:

[tex]\[ 5x^3 - 10x^2 - 15x \][/tex]

Therefore, the product of multiplying the expression [tex]\(x^2 - 2x - 3\)[/tex] by [tex]\(5x\)[/tex] is:

[tex]\[ 5x^3 - 10x^2 - 15x \][/tex]