PLEASE HELP!! MEDAL!!

Question

clamin · Answer

attachment

anonymous · Answer

So we got

$$3n^2 + 5n +7 = 5$$

And we need to factor it. So what do you suppose is the first step?

anonymous · Answer

Or is this where you are stuck?

anonymous · Answer

First, you need to move everything to one side. Then you need to use something called Pythagorean's Theorem, which gives you a way to solve for the values of x at 0.

clamin · Answer

yes im stuck

anonymous · Answer

yes as Luke said you need to move everything to one side so you got it equal to 0 so that is very simple you get.

$$3n^2 + 5n +2 = 0$$

Now comes the toughed part. FOILing to get what x equals.

the factors of 3 are just 3 and 1 and factors of 2 are just 1 and 2  so this makes it pretty simple

$$(3n \pm2)(n \pm1)=0 $$

Now where i placed the plus and minus sign you need to determine that would make the expression true and as you can both should be plus so your factored expression is

$$(3n +2)(n + 1) = 0$$

Now set both factors equal to zero and solve for n to get your answer set

clamin · Answer

the answer is not on the chioces..@hilbertboy96

anonymous · Answer

You have to find for which values of n, that equation he gave you is 0. You do that by doing one term at a time. (3n+2) then (n+1).

anonymous · Answer

so yes solve 3n + 2 = 0 and you get one solution, then do n + 1 = 0 and you get another, These two solutions should be one of your choices

clamin · Answer

i get 3n^2+5n+2=0