Question
What is the simplified form of 
Hint:
The expansions of some identities are:
We are asked to simplify the expression.
The correct answer is: The simplified expression is: .
Step 1 of 2:
Simplify the numerators of the expression using identities.
We simplified the second expression using the identity, 
Step 2 of 2:
Simplify the denominator of the expression and cut of the common terms.
The identity used here is:
The simplified expression is: 
You could simplify an expression by removing common values form the numerator and the denominator.
Related Questions to study
Write the equation in slope-intercept form of the line that passes through the points (3, 1) and (0, -3).
The slope-intercept form of a line is the most common way to express a line's equation. For example, the slope-intercept form, y = mx + c, is the equation of a straight line with slope m and intercept c on the y-axis. In this case, m and c can be any two real numbers.
The value of m in the equation defines the line's slope (or gradient). It can have a positive, negative, or 0 value.
• Positive gradient lines rise from left to right.
• Negative gradient lines slant in reverse order From left to right.
• The gradient of horizontal lines is zero.
The value of c is known as the line's vertical intercept. When x = 0, this is the value of y. When drawing a line, c indicates where the line intersects the vertical axis.
For example, y = 3x + 2 has a slope of 3 (i.e., m = 3) and an intercept of 2 on the y-axis (i.e., c = 2).
To determine the slope-intercept equation. First, find the slope of a line and then the y-intercept of a line.
Write the equation in slope-intercept form of the line that passes through the points (3, 1) and (0, -3).
The slope-intercept form of a line is the most common way to express a line's equation. For example, the slope-intercept form, y = mx + c, is the equation of a straight line with slope m and intercept c on the y-axis. In this case, m and c can be any two real numbers.
The value of m in the equation defines the line's slope (or gradient). It can have a positive, negative, or 0 value.
• Positive gradient lines rise from left to right.
• Negative gradient lines slant in reverse order From left to right.
• The gradient of horizontal lines is zero.
The value of c is known as the line's vertical intercept. When x = 0, this is the value of y. When drawing a line, c indicates where the line intersects the vertical axis.
For example, y = 3x + 2 has a slope of 3 (i.e., m = 3) and an intercept of 2 on the y-axis (i.e., c = 2).
To determine the slope-intercept equation. First, find the slope of a line and then the y-intercept of a line.
If the denominator of a rational expression is 
what values must be restricted from the domain for x ?
If the denominator of a rational expression is what values must be restricted from the domain for x ?
What is the product of 
What is the product of
Jim is playing a math game where he needs to put a set of three cards in numerical order. His cards show 
and √10 . Order the cards from least to greatest.
Jim is playing a math game where he needs to put a set of three cards in numerical order. His cards show and √10 . Order the cards from least to greatest.
In the set of numbers from 1 to 10 , Which elements are in both the subsets of even numbers , and the subset of multiples of 5?
In the set of numbers from 1 to 10 , Which elements are in both the subsets of even numbers , and the subset of multiples of 5?
Some, but not all , equations with rational exponents have extraneous solutions. What is the relationship between the exponents and possibility of having extraneous solutions for equations with rational exponents? Explain your reasoning
Some, but not all , equations with rational exponents have extraneous solutions. What is the relationship between the exponents and possibility of having extraneous solutions for equations with rational exponents? Explain your reasoning
Use the equations represented in the graph below to find the point of intersection
Use the equations represented in the graph below to find the point of intersection
Write a radical equation that relates a square’s perimeter to its area. Explain your reasoning. Use s to represent the side length of the square.
Write a radical equation that relates a square’s perimeter to its area. Explain your reasoning. Use s to represent the side length of the square.
Explain how to identify an extraneous solution for an equation containing a radical expression
Explain how to identify an extraneous solution for an equation containing a radical expression
Solve the equation 
Solve the equation
Solve the equation 
Solve the equation
Solve the equation 
Solve the equation
Simplify each expressions and state the domain : 
Simplify each expressions and state the domain :
Express the rational expression in its lowest terms .
A rational expression is a fractional form containing polynomials on the denominator and the numerator.
Express the rational expression in its lowest terms .
A rational expression is a fractional form containing polynomials on the denominator and the numerator.
, is it necessary to make the restriction x ≠ 0 ? Why or Why not ?
