Question

twice a number is added to three times its square. if the result is 16, find the number

Answer 1

x=2. Honestly, what i did is a guess and check because I wasn't sure. Set up the equation like this. x² + 3(x²)=16  Then just think what makes the most sense and the answer is two because it would end up being 4+3(4) =16 which is correct :)