I believe the answer is 20+2x squared.
Just ask if you want it to be clarified better
You can figure out how many boxes Carl will need by dividing the total number of DVDs by the amount of DVDs each box can hold.
Your equation should be: 512 ÷ 20 = x (amount of boxes needed)
512/20 = 25.6
We will round 25.6 up because you cannot have a fraction of a box, so 25.6 becomes 26.
Carl will need 26 boxes.
<span>Simplifying
y = 3x + -9 + 8x
Reorder the terms:
y = -9 + 3x + 8x
Combine like terms: 3x + 8x = 11x
y = -9 + 11x
Solving
y = -9 + 11x
Solving for variable 'y'.
Move all terms containing y to the left, all other terms to the right.
Simplifying
y = -9 + 11x</span>
--First we have to simplfy
--Cancel common factors
--Here remember never cancel factors in a subtraction or addition problem
--Now Multiply each side until both denominators are equal to each other
![\frac{2[x(x+1)]}{x(x+3)(x+1)} -\frac{(x-3)(x+3)}{x(x+3)(x+1)}](https://tex.z-dn.net/?f=%5Cfrac%7B2%5Bx%28x%2B1%29%5D%7D%7Bx%28x%2B3%29%28x%2B1%29%7D%20-%5Cfrac%7B%28x-3%29%28x%2B3%29%7D%7Bx%28x%2B3%29%28x%2B1%29%7D)
--Simplify
--Now that the denominators are the same: subtract!
--And LAST STEP! ......Simplify More.... To get your answer
It is the cube root of 756
^3 and cube root are inverse functions
