2 years ago

Determine the domain of the function. f(x)=4/x^2

1 answer:

3 0

Since x can be any value as long as the denominator equals 0 (it doesn't matter if it's positive or negative), we have to figure out when x^2=0, which is when x=0. Therefore, the domain is (-inf, 0) U (0, inf)

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Need help 8th grade math

Lana71 [14]

Answer:

Step-by-step explanation: try to get x in one side and the whole number to another side to get x= blank

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3 years ago

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SPECIAL PRODUCTS- PERFECT SQUARE TRINOMIALS <br> 1. (2x - y)(4x2 + 2xy + y2) <br> Anyone know??

Ad libitum [116K]

(2x - y)(4x2 + 2xy + y2) =

8x3 + 4x2y + 2xy2 - 4xy2 - 2xy2 - y3 (combine and simplify like terms)

= 8x3 - y3

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2 years ago

What is the Greatest common factor of 18x^2 and 36x

loris [4]

For this case we have that by definition, the Greatest Common Factor or GFC of two or more numbers, is the largest number that divides them without leaving residue.

So:

We look for the factors of 18 and 36:

18: 1,2,3,6,9,18

36: 1, 2,3,4, 6,9,18 ...

Thus, the GFC of both numbers is 18.

Then, the GFC of $18x ^ 2$ and $36x$ is: