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Thepotemich [5.8K]
2 years ago
8

Completely simplify the rational expression 6-(x-1)/(x+1)

Mathematics
1 answer:
Angelina_Jolie [31]2 years ago
6 0

Answer:

-x + 7 / x + 1

Step-by-step explanation:

6 -(x - 1)/ x + 1

Apply distributive law: -(x - 1) = -x + 1

= 6 - x + 1 / x +1

Group like terms:

= -x + 7/ x + 1

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Tamiku [17]
Salma showed me how to do it.

Here are two ways:

8 times (5·3 - 2)  =  8 times (15 - 2)  =  8 times 13  =  104 .

8 times (5·2 + 3)  =  8 times (10 + 3)  =  8 times 13  =  104.

Thank you, Salma.
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Six identical circles fit inside the rectangle as shown below. If the rectangle has a width of 15
irakobra [83]

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Step-by-step explanation:

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3 years ago
Evaluate 9 x 8 = (10 x 8) - ( blank x 8) =80 - blank = blank
Westkost [7]

Answer:

see below

Step-by-step explanation:

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3 years ago
Factor completely<br> n^4 +8n^2 + 15 =
nata0808 [166]

Answer:

The factor form is n^4+8n^2+15 = \quad \left(n^2+3\right)\left(n^2+5\right)

Step-by-step explanation:

When it is required to factor the expression given in the problem, we have to first find a common term or terms, which will be found by either grouping the like terms or the splitting of the terms.

Now the expression that is given here is:

n^4 +8n^2 + 15

Now, here we will take:

u=n^2

Thus we will get:

n^4 +8n^2 + 15\\=u^2+8u+15

Now we will do the middle term split as follows:

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Substituting back u=n^2 , we will have:

\left(u+3\right)\left(u+5\right)\\=\left(n^2+3\right)\left(n^2+5\right)

Hence, the required factor form of the given expression will be:

n^4+8n^2+15 = \quad \left(n^2+3\right)\left(n^2+5\right)

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