IDNLearn.com: Your trusted source for finding accurate answers. Discover in-depth answers to your questions from our community of experienced professionals.
Sagot :
Let's expand the expression [tex]\((-2x + 1)(x^2 - 9x + 10)\)[/tex] step by step.
### Step-by-Step Solution:
1. Distribute [tex]\(-2x\)[/tex] to each term in the polynomial [tex]\(x^2 - 9x + 10\)[/tex]:
[tex]\[ -2x \cdot (x^2 - 9x + 10) = -2x \cdot x^2 + (-2x) \cdot (-9x) + (-2x) \cdot 10 \][/tex]
Simplifying each term:
[tex]\[ -2x \cdot x^2 = -2x^3 \][/tex]
[tex]\[ -2x \cdot (-9x) = 18x^2 \][/tex]
[tex]\[ -2x \cdot 10 = -20x \][/tex]
So, we get:
[tex]\[ -2x^3 + 18x^2 - 20x \][/tex]
2. Distribute [tex]\(1\)[/tex] to each term in the polynomial [tex]\(x^2 - 9x + 10\)[/tex]:
[tex]\[ 1 \cdot (x^2 - 9x + 10) = 1 \cdot x^2 + 1 \cdot (-9x) + 1 \cdot 10 \][/tex]
Simplifying each term:
[tex]\[ 1 \cdot x^2 = x^2 \][/tex]
[tex]\[ 1 \cdot (-9x) = -9x \][/tex]
[tex]\[ 1 \cdot 10 = 10 \][/tex]
So, we get:
[tex]\[ x^2 - 9x + 10 \][/tex]
3. Combine the results from both distributions:
[tex]\[ (-2x^3 + 18x^2 - 20x) + (x^2 - 9x + 10) \][/tex]
4. Combine like terms:
- The [tex]\(x^3\)[/tex] term: [tex]\(-2x^3\)[/tex]
- The [tex]\(x^2\)[/tex] terms: [tex]\(18x^2 + x^2 = 19x^2\)[/tex]
- The [tex]\(x\)[/tex] terms: [tex]\(-20x - 9x = -29x\)[/tex]
- The constant term: [tex]\(10\)[/tex]
### Final Expanded Expression in Standard Form:
[tex]\[ -2x^3 + 19x^2 - 29x + 10 \][/tex]
So, the expanded expression is:
[tex]\[ -2x^3 + 19x^2 - 29x + 10 \][/tex]
### Step-by-Step Solution:
1. Distribute [tex]\(-2x\)[/tex] to each term in the polynomial [tex]\(x^2 - 9x + 10\)[/tex]:
[tex]\[ -2x \cdot (x^2 - 9x + 10) = -2x \cdot x^2 + (-2x) \cdot (-9x) + (-2x) \cdot 10 \][/tex]
Simplifying each term:
[tex]\[ -2x \cdot x^2 = -2x^3 \][/tex]
[tex]\[ -2x \cdot (-9x) = 18x^2 \][/tex]
[tex]\[ -2x \cdot 10 = -20x \][/tex]
So, we get:
[tex]\[ -2x^3 + 18x^2 - 20x \][/tex]
2. Distribute [tex]\(1\)[/tex] to each term in the polynomial [tex]\(x^2 - 9x + 10\)[/tex]:
[tex]\[ 1 \cdot (x^2 - 9x + 10) = 1 \cdot x^2 + 1 \cdot (-9x) + 1 \cdot 10 \][/tex]
Simplifying each term:
[tex]\[ 1 \cdot x^2 = x^2 \][/tex]
[tex]\[ 1 \cdot (-9x) = -9x \][/tex]
[tex]\[ 1 \cdot 10 = 10 \][/tex]
So, we get:
[tex]\[ x^2 - 9x + 10 \][/tex]
3. Combine the results from both distributions:
[tex]\[ (-2x^3 + 18x^2 - 20x) + (x^2 - 9x + 10) \][/tex]
4. Combine like terms:
- The [tex]\(x^3\)[/tex] term: [tex]\(-2x^3\)[/tex]
- The [tex]\(x^2\)[/tex] terms: [tex]\(18x^2 + x^2 = 19x^2\)[/tex]
- The [tex]\(x\)[/tex] terms: [tex]\(-20x - 9x = -29x\)[/tex]
- The constant term: [tex]\(10\)[/tex]
### Final Expanded Expression in Standard Form:
[tex]\[ -2x^3 + 19x^2 - 29x + 10 \][/tex]
So, the expanded expression is:
[tex]\[ -2x^3 + 19x^2 - 29x + 10 \][/tex]
Thank you for contributing to our discussion. Don't forget to check back for new answers. Keep asking, answering, and sharing useful information. IDNLearn.com is your go-to source for dependable answers. Thank you for visiting, and we hope to assist you again.