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faltersainse [42]
3 years ago
6

Which of the following show the factored equivalent of f(x) = (x2 - 81)(x + 5) and its zeroes. f(x) = (x - 6)(x + 6)(x + 5); x=

6, -6, -5 f(x) = (x - 9)(x + 9)(x + 5); x= 9, -9, -5 f(x) = (x - 9)(x + 9)(x + 5); x= -9, -9, -5 f(x) = (x - 6)(x + 6)(x + 5); x= -6, 6, -5
Mathematics
2 answers:
andrezito [222]3 years ago
8 0
The correct answer is:  [B]:
________________________________________________________
 <span> f(x) = (x - 9)(x + 9)(x + 5);   x= 9, -9, -5 .
________________________________________________________

</span>
Ket [755]3 years ago
3 0

Answer:

Option B

Step-by-step explanation:

We have to write the function f(x) in the factored form.

f(x) = ( x² - 81 ) ( x+5 )

Since [ a² - b² = ( a-b ) ( a+b) ]

so f(x) = ( x² - 9² ) ( x + 5 )

=  ( x - 9 ) ( x + 9 ) ( x + 5 )

If these factors are the zero factors then

( x - 9 ) = 0 ⇒ x = 9

( x + 9 ) = 0 ⇒ x = -9

x + 5 = 0 ⇒ x = -5

Option B will be the answer.

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The Gaineys and the Arnolds are saving money for a trip to Utah to go snowboarding. The Arnolds are going to save a nickel on th
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=> a1 =0.05

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=> a3 = a2*2 = a1* 2*2

..............................................

=>recursive an = a_{n-1} *2

=> explicit an = 0.05*2^{n-1}

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Start their savings by saving  $10  on the first day and then  $10  each day of the month

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3 years ago
What is the volume of a rectangular prism with a height of 6 m, a length of 4 m, and a width of 2 m?
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Is 27.5 a rational number
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I honestly need to know how to take some of my stuff down cause apparently it’s bad to show something‍♀️
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