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What is the solution?
start by multiplying both sides by 3
What are the sides? XD
both sides of the equation...
you have the left side of the equal sign, which is the n(-2n-2)/3 part and the right side, which is the 12 now multiply both sides by 3
12=36. But how do i do the first one?
when you multiply the expression by 3, the 3 in the denominator cancels out
now we set that equal to 36 and solve for n
next, distribute the n on the left side
Im stuck..!! everything made sense but i don't get the (-2n-2) part.
apply the distributive property A(B-C) = A*B - A*C n(-2n-2) = ?
no, I'm not asking you to solve for n, I'm asking you to rewrite the expression
n*(-2n) = ?
-2n= n?????????????????? omg :o IM SO CONFUSED ON WHAT TO DO HERE!!!!
just multiply them together...
I may be doing my math wrong, but wouldn't it equal -2n^2?
I don't know what n is though? So how could i multiply n and that?
we can still multiply n by n to get n^2, like duck said
(n)*(-2n) = -2n^2
Ohhhh so it equals -2n^2?
we can perform math operations on variables without knowing what the variables are like, how x + x = 2x
yes, (n)*(-2n) = -2n^2 now multiply (-2) and n
-2*n= n? >_<
-2*n is just -2n
Ohhh. Okay... So that's all?
now we keep going n(-2n-2) = -2n^2-2n after we apply the distributive property
then divide both sides by 2
36 divided by 2 = 18. So what is the next one i divide?
don't forget the left side
Just a suggestion... wouldn't you want to square root both sides before dividing?
why would I take the square root?
Isolation of the variable n, when you have 2n^2, It'd be easier to square root it in the beginning, while you still have a perfect square..
I may be wrong, but that's just how I saw that.
Oh yeah, sorry. I forgot we still had -2n in there.
WOULD SOMEONE JUST HELP WITH THE ANSWER ALREADY?????? D:
then we just move everything to one side and use the quadratic formula
So the answer is n=0?
after we apply the quadratic formula:
I guess i will put a random answer because my brain can't handle this type of math ;~;
So n= that?
Thank you so much :D :D :D