What is the value of the rational expression below when x is equal to 3?
15-x9-x
2
32
53
-2
Explanation for correct option:
Finding value of rational expression.
Given expression,
For x=3,
⇒15-39-3⇒126⇒2
Hence, Option (A) is correct.
Show that the value of x3+6x2-4x-9 is equal to zero, when x=-1 .
Which of the following values of x makes the rational expression below undefined?
x+93-x
Which of the following is equal to the rational expression below when x not equal to 4?
x2-16x-4
Which of the following is equal to the rational expression below when x is not equal to 2 or 9?
4x-2x-2x-9
What is the difference of the rational expressions below?
7xx+4-3x