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2 years ago

When 4 is added to five times a number the sum is 34. Find the number. *

Mathematics

1 answer:

slavikrds [6]2 years ago

8 0

Answer:

let the number be 'x'

now,

4+5x=34
5x=34-4
x=30/5
x=6

so, the number is 6.

hope it helps

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Bumek [7]

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Step-by-step explanation:

The relationship in #3 is a function because all the x values are distinct, that is, none are repeated. (Y values don't matter.)

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3 years ago

Factor completely: 2x4 − 32.

vazorg [7]

Answer:

Option b) is correct.

The completed factor of given expression is $2(x-2)(x+2)(x^2+4)$

Step-by-step explanation:

Given expression is $2x^4-32$

To find the completed factor for the given expression:

$2x^4-32$ :

Taking the common number "2" outside to the above expression we get

$2x^4-32=2(x^4-16)$

Now rewritting the above expression as below

$=2(x^4-2^4)$ (since 16 can be written as the number 2 to the power of 4)

$=2((x^2)^2-(2^2)^2)$

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Here $a=x^2$ and $b=2^2$

Therefore it becomes

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$=2(x^2+4)(x^2-2^2)$

The above expression is of the form $a^2-b^2=(a+b)(a-b)$

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Option b) is correct.

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