I’ll help comment the questions and I’ll answer
Show how you got your answer in reverse. For example... if ur question is
4+4/(?)=4
8/?=4
oh its commen sense that the answer is 2.
now show how u got the answer 2.
? is 2 because, 4 times 2 equals 8
4(2)=8
Contradictions usually mean they go against established rules. Squaring a negative number is one example if it is in math. But just think of anything that goes against what is known.
The expansion of a perfect square is
In words, the square of a sum of two terms is the sum of the squares of the two terms ( and ), plus twice the product of the two terms ()
So, when determining if you have a perfect square trinomial, you should have two perfect squares. Note that they don't have to be the first and third term, since you can rearrange terms as you prefer.
Number of vertices of hexagon is 6