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name____________________ geometry midterm review date_________period___…

Question

name__________________ geometry midterm review date_____period__

  1. answer the questions about the following polynomial.

\\(-3 - x + \frac{1}{3}x^2 + x^4\\)
the expression represents a \\(\underline{\quad\quad}\\) polynomial
with \\(\underline{\quad\quad}\\) terms. the constant term is \\(\underline{\quad\quad}\\), the
leading term is \\(\underline{\quad\quad}\\), and the leading coefficient is
\\(\underline{\quad\quad}\\)
this word bank also applies to question 2.
word bank: (a) cubic, (b) quartic, (c) linear, (d) quadratic, (e) quintic

  1. answer the questions about the following polynomial.

\\(-4x^5 - x^4 - 7 - \frac{1}{4}x\\)
the expression represents a \\(\underline{\quad\quad}\\) polynomial
with \\(\underline{\quad\quad}\\) terms. the constant term is \\(\underline{\quad\quad}\\), the
leading term is \\(\underline{\quad\quad}\\), and the leading coefficient is
\\(\underline{\quad\quad}\\)

rewrite the following polynomial in standard form.
\\(10 + \frac{x^5}{5} + x^3\\)

rewrite the following polynomial in standard form.
\\(2 - 8x - \frac{x^2}{5}\\)

  1. use the box method to distribute and simplify

\\((2x - 6)(-6x + 3)\\).

  1. use the box method to distribute and simplify

\\((x - 3)(-5x + 1)\\).

  1. use the box method to distribute and simplify

\\((-6x^2 + 4x)(3x + 5)\\).

Explanation:

Question 1: Analyze the polynomial \(-3 - x + \frac{1}{3}x^2 + x^4\)

Step 1: Determine the degree of the polynomial

The degree of a polynomial is the highest power of \(x\) with a non - zero coefficient. In the polynomial \(-3 - x + \frac{1}{3}x^2 + x^4\), the highest power of \(x\) is \(4\) (from the term \(x^4\)). So the polynomial is a quartic (since degree 4) polynomial.

Step 2: Count the number of terms

A term is a single number, variable, or the product of a number and variable(s). The terms in the polynomial are \(-3\), \(-x\), \(\frac{1}{3}x^2\), and \(x^4\). So there are 4 terms.

Step 3: Identify the constant term

The constant term is the term without a variable. In the polynomial, the constant term is \(-3\).

Step 4: Identify the leading term

The leading term is the term with the highest degree. Here, the term with the highest degree (degree 4) is \(x^4\).

Step 5: Identify the leading coefficient

The leading coefficient is the coefficient of the leading term. For the term \(x^4\), the coefficient is \(1\).

Step 1: Determine the degree of the polynomial

The highest power of \(x\) in the polynomial \(-4x^5 - x^4 - 7-\frac{1}{4}x\) is \(5\) (from the term \(-4x^5\)). So the polynomial is a quintic (degree 5) polynomial.

Step 2: Count the number of terms

The terms are \(-4x^5\), \(-x^4\), \(-7\), and \(-\frac{1}{4}x\). So there are 4 terms.

Step 3: Identify the constant term

The constant term is \(-7\) (the term without a variable).

Step 4: Identify the leading term

The leading term is the term with the highest degree, which is \(-4x^5\).

Step 5: Identify the leading coefficient

The coefficient of the leading term \(-4x^5\) is \(-4\).

Step 1: Recall the standard form of a polynomial

The standard form of a polynomial is written in descending order of the exponents of the variable.

Step 2: Rearrange the terms

For the polynomial \(10+\frac{x^5}{5}+x^3\), we arrange the terms from the highest degree to the lowest degree. The term with degree 5 is \(\frac{x^5}{5}\), the term with degree 3 is \(x^3\), and the constant term (degree 0) is \(10\). So the standard form is \(\frac{1}{5}x^5 + x^3+10\).

Answer:

quartic, 4, \(-3\), \(x^4\), \(1\)

Question 2: Analyze the polynomial \(-4x^5 - x^4 - 7-\frac{1}{4}x\)