brianag95 brianag95
  • 01-10-2020
  • Mathematics
contestada

Simplify completely
x2 + 4x - 45
and find the restrictions on the variable.

Simplify completely x2 4x 45 and find the restrictions on the variable class=

Respuesta :

Taniskellogg Taniskellogg
  • 01-10-2020

Answer:

(x-5)/(x+1) and x cannot equal -1 because the denominator can't be zero.

Step-by-step explanation:

Factor the numerator:

(x+9)(x-5)

Factor the denominator:

(x+1)(x+9)

So you have

(x+9)(x-5)/(x+1)(x+9); see that you can cross out the (x+9) in both the numerator and denominator?

You're left with (x-5)/(x+1)

The only number that is restricted is -1, because that would make the denominator zero, which is a no no!!

Answer Link

Otras preguntas

diameter = 8 cm circumference =
A political communication that shows preference towards a particular belief or attitude contains _________. bias media propaganda symbolism
is 3/10 greater than 1/2
Classification systems _____. a. are all the same b. are all different c. vary with the taxonomist d. none of these
The Senate of Clinton's administration was controlled by the Republicans. true false
Which of the following were advantages of the Federalists in the battle for ratification? (A)a clearly defined program to meet the difficulties of the country (
What mountain range separates India and Nepal from China?
a solid mixture of one or more minerals is called a
why is the lower epidermis of zebrina a complex tissue
Mark rides his bike 15 blocks in 4 minutes. how long does it take him to ride 45 blocks?