4/y+2 - 9/y-2 = 9/y^2-4

2 answers:

8 0

Going off the idea that this is 4/(y+2) - 9/(y-2) = 9/(y^2-4), let's first rewrite y^2-4 in the form of a^2-b^2, where a=y and b=2.
y/(y+2)-9/(y-2)=9/(y^2-2^2)
Now, use difference of squares: a^2-b^2=(a+b)(a-b)
4/(y+2)-9/(y-2)=9/((y+2)(y-2))
Multiply both sides by the Least Common Denominator: (y+2)(y-2)
4(y-2)-9(y+2)=9
Then keep on simplifying until you get your answer
-5y-26=9
-5y=9+26
-5y=35
y=35/-5
y=-7
Yay! Our answer is y=-7!

tangare [24]3 years ago

6 0

The answer y =-7
follow me

You might be interested in

Can someone help? Solve for x

Luba_88 [7]

The answer is A) x = 9

We know this because every four sided figure has angles that measure up to 360. So we can subtract all of the angles and then use the remaining angle to solve the problem.

360 - 90 - 90 - 99 = 81.

So with the remaining angle being 81, we can solve for x.

x^2 = 81
x = +/-9

Since +9 is the only answer that makes sense in this case, x = 9.

8 0

3 years ago

Read 2 more answers

In the figure, is divided into equal parts. The coordinates of point A are (2, 4), and the coordinates of point B are (10, 6). M

zheka24 [161]

Answer:

Step-by-step explanation:

We will use mid point formula:

According to the attached picture:

F is the mid point of A and B.

Thus by using formula we have,

F = (2+10)/2 , (4+6)/2