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# What is the LCD of 1/10x^4 and 4/5x

This question comes from ch.7.3 titled :Adding and subtracting rational Expressions with the same denominator and least common denominator.

# How to simplify ((4b^2c)^3/20(ab)^2)x((5a^5c)/(18bc^6)

I'be tried this problem several times and keep getting stuck. I don't think I'm starting it right.

# How do you simplify (2x-5)/(x-2)+(x-8)/(x+4)

I've multiplied it out so that they both have a common denominator of (x+4)(x-2) and now I'm confused on what to do next.

# Rationalize the denominator in the expression

Rationalize the denominator in the expression             -√2d   t =     ----            ...

# rational expressions g^2-6g-55 / gk^3 +k / k^2 + k-42

need to find the domain for both expressions   g^2 - 6g-55 divided by g   k^3 + k divided by K^2 + k - 42

# Rational Expression and Equations ,Functions

Simplify this rational expression    x^2+3x-7    x^2+5x-9       x^2-6x+14 ----------- - ------------- + --------------- x^2-2x-8...

# adding and subtracting rational expressions

I need help with adding and subtracting rational expressions

# (FIRST PART ALREADY ANSWERED AND NEW PART ADDED) Why do you find the domain of both the numerator and denominator in a rational equation? When do you do it?

For example, if you had:   x-3 ------ 5x+3   you'd only find the domain and use the denominator. Why wouldn't you also do the numerator?    And...

# can you help me with my math?

determine value of k when g(x)= 4x+k does not intersect the parabola f(x)=-3x2-x+4

# one number is 1/4 of another number. The sum of the two number's is 30. Find the two numbers.

I have a few questions on my pre - test study guide that is due  tomorrow that I don't understand how to do. I am in math 120 or in algebra 2 for high school - but i am a college student. I have...

# I need help solving rational equations, i cant figure out how

The problem is (2x+1/3)-(x-5/4)=1/2

# How do you add rational expressions with different denominators and numerators?

The problem is : (3x+3/x^2+2x+1)+(x-1/x^2-1) ^2=squared ive been on a lot of math help websites but I cant seem to figure out how to solve this

# Combine the rational expressions

Combine the rational expressions.. Reduce your answer to lowest terms   2/x2 + 5x + 6   -   4/x2  + 4x + 3   +   3/x2...

# I need help on these questions

x2+10x+25/4x2+17x-15

# 1/x + 1/9 / 1xsquare - 1/3

1/x + 1/9 / 1xsquare - 1/3

y=6/4x+24

# Can this be further simplyfied?

Adding and Subtracting Rational Expressions 5 over 6ab - 7 over 8a after getting common denominators i get 20 - 21b over 24ab can this be further simpified?

# How is the process for simplifying and multiplying fractions similar to simplifying or multiplying rational expressions?

How is the process for simplifying 2x(x+1)/4(x+1) similar? Different?

# How is adding, subtracting, multiplying and dividing fractions similar to doing

How is adding, subtracting, multiplying and dividing fractions similar to doing the same with rational expressions. can you give me an example of each?