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Original problem: x^2-x-20x2-25/x2-16x^2-x-30
Revised: [(x2 - x - 20)(x2 - 25)] / [(x2 - 16)(x2 - x - 30)]
Solution:
Factor the polynomials:
{[(x - 5)(x + 4)][(x + 5)(x - 5)]} / {[(x +4)(x - 4)][(x - 6)(x + 5)]}
Cancel common factors:
[(x - 5)(x - 5)] / [(x - 4)(x - 6)] ---> Simplest form (or final answer)
(Optional) Expand:
(x2 - 10x + 25) / (x2 - 10x + 24)
What else can I help you with?
If the equation of a rational function is a rational expression is the function rational?
Yes. Rational functions must contain rational expressions in order to be rational.
Is there a difference between rational expressions and rational equations?
Yes. An equation has an "=" sign.
After multiplying or dividing two rational expressions it is sometimes possible to the resulting expression?
After multiplying or dividing two rational expressions it is sometimes possible to simplify the resulting expression.
Difference between rational numbers and rational expressions?
A Rational number is a fraction of two integers; a rational expression is a fraction that contains at least one variable
The multiplication property works when the radicands are rational expressions?
true
What is a common mistake that is important to avoid when simplifying rational expressions?
Division by a factor that can be zero.
Simplifying trig expressions?
Yes!!! What do you want to know about simplifying trig. expressions.
If the equation of a function is a rational expressions the function is rational?
Yes. Rational functions must contain rational expressions in order to be rational.
How can mathematical expressions be solved efficiently?
By simplifying them.
Simplifying rational expressions 6x-5y plus -3x-4y?
(6x - 5y) + (-3x - 4y) =6x - 5y - 3x - 4y =3x - 9y =3 (x - 3y)
Why would you want to factor each expression before multiplying or dividing 2 rational expressions?
In both cases, you may be able to cancel common factors, thus simplifying the expression.
Equations that contain rational expressions?
a rational function.
What is subtraction of rational expressions?
another rational expression.
How do you know if you will subtract or add in simplifying algebraic expressions?
Only like terms can be subtracted or added in algebraic expressions.
How do you write mixed expressions as rational expressions?
8+3/n
What is simplifying expressions of 6a b a 17 4b 32 17a?
65
If the equation of a rational function is a rational expression is the function rational?
Yes. Rational functions must contain rational expressions in order to be rational.
