<p>Hello,
I made math questions correct except one :(
He is it:
For how many integers n, (2n+1)(3n-11) is a negative number?
I picked the choice three: 1,2, and 3. But the correct answer is four. Which one I forgot?
Thanks.</p>
<p>Zero. 10char</p>
<p>0,1,2,3 10char</p>
<p>Ops! I forgot a zero. Thank you, guys!</p>