Pregunta
Write each potynomial in standard form. Then, dassify it by degree and by number of terms. \( \begin{array}{l}\text { 1. } 4 x+5 x^{2}+8 \\ \text { 2. } x^{2}-x^{4}+2 x^{2}\end{array} \)
Ask by Allan Lindsey. in the United States
Jan 23,2025
Solución de tutoría real
Respuesta verificada por el tutor
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**Polynomial 1:**
- **Standard Form:** \(5x^{2} + 4x + 8\)
- **Degree:** 2
- **Number of Terms:** 3
**Polynomial 2:**
- **Standard Form:** \(-x^{4} + 3x^{2}\)
- **Degree:** 4
- **Number of Terms:** 2
Solución
Sure! Let's go through each polynomial step by step.
---
### **1. Polynomial:** \( 4x + 5x^{2} + 8 \)
#### **a. Standard Form**
To write the polynomial in standard form, arrange the terms in **descending order of degree** (from the highest exponent to the lowest):
\[
5x^{2} + 4x + 8
\]
#### **b. Classification**
- **Degree:** The highest exponent in the polynomial is **2** (from \(5x^{2}\)).
**Degree = 2**
- **Number of Terms:** There are **3** terms in the polynomial: \(5x^{2}\), \(4x\), and \(8\).
**Number of Terms = 3**
---
### **2. Polynomial:** \( x^{2} - x^{4} + 2x^{2} \)
#### **a. Simplifying and Writing in Standard Form**
First, combine like terms:
\[
x^{2} + 2x^{2} = 3x^{2}
\]
Now, arrange the terms in descending order of degree:
\[
- x^{4} + 3x^{2}
\]
#### **b. Classification**
- **Degree:** The highest exponent in the polynomial is **4** (from \(-x^{4}\)).
**Degree = 4**
- **Number of Terms:** There are **2** terms in the polynomial: \(-x^{4}\) and \(3x^{2}\).
**Number of Terms = 2**
---
### **Summary**
| Polynomial | Standard Form | Degree | Number of Terms |
|----------------------|-----------------------|--------|-----------------|
| \(4x + 5x^{2} + 8\) | \(5x^{2} + 4x + 8\) | 2 | 3 |
| \(x^{2} - x^{4} + 2x^{2}\) | \(-x^{4} + 3x^{2}\) | 4 | 2 |
---
If you have any more polynomials you'd like to work through or any further questions, feel free to ask!
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Extra Insights
To write each polynomial in standard form, we organize the terms in descending order of their exponents. 1. For \(4x + 5x^2 + 8\), the standard form is \(5x^2 + 4x + 8\). - This polynomial is a quadratic because its highest degree is 2, and it has three terms (thus, it's classified as a trinomial). 2. For \(x^2 - x^4 + 2x^2\), first combine like terms to get \(-x^4 + 3x^2\). - The standard form is \(-x^4 + 3x^2\). - This polynomial is a quartic (degree 4), and it has two terms, so it's classified as a binomial.
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