Question
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
Real Tutor Solution
Tutor-Verified Answer
Answer
**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
Solution
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!
Reviewed and approved by the UpStudy tutoring team
Like
error msg
Explain
Simplify this solution
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.