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Popular Word Problems >

Add and simplify: (x2−9x)/(x2−1x−42)+(9x−49)/(x2−1x−42) Enter the numerator and denominator separately in the boxes below. If the denominator is 1, enter the number 1. Do not leave either box blank. Answer:

Solution

A dd an d s im pl i f y : \frac{x 2 - 9 x}{x 2 - 1 x - 42} + \frac{9 x - 49}{x 2 - 1 x - 42} E n t er t h e n u m er a t or an d d e n o mina t or se p a r a t e l y in t h e b o x es b e l o w . I f t h e d e n o mina t or i s 1, e n t er t h e n u mb er 1. Do n o t l e a v e e i t h er b o x b l ank . A n s w er :

Solution

True for all x \in R

Solution steps

Represent the numbers with

x

:

denominator : x

A.T.Q.:

x = 1 \cdot x \cdot 1

Solve for

x, x = 1 \cdot x \cdot 1 :

True for all

x

True for all x \in R

Popular Examples

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