Simplifying Expressions
Not what you're looking for?
18.
3 - 2
12 + x - x2 x2 - 9
4x - 6 - 7 - 2x
x - 5 5 - x
a - 5
a2 + 11a + 30 a2 + 9a + 20
Purchase this Solution
Solution Summary
Expressions are simplified.
Solution Preview
18. 3/(12+x-x^2) - 2/(x^2-9)
= -3/(x-4)(x+3) - 2/(x+3)(x-3)
= -3(x-3)/(x-4)(x+3)(x-3) - 2(x-4)/(x-4)(x+3)(x-3)
= ...
Purchase this Solution
Free BrainMass Quizzes
Probability Quiz
Some questions on probability
Geometry - Real Life Application Problems
Understanding of how geometry applies to in real-world contexts
Exponential Expressions
In this quiz, you will have a chance to practice basic terminology of exponential expressions and how to evaluate them.
Know Your Linear Equations
Each question is a choice-summary multiple choice question that will present you with a linear equation and then make 4 statements about that equation. You must determine which of the 4 statements are true (if any) in regards to the equation.
Multiplying Complex Numbers
This is a short quiz to check your understanding of multiplication of complex numbers in rectangular form.