A square since all sides are equal and the angles aren't acute so it can't be a rhombus
Lets quickly run through the prime numbers and see what it is not divisible by
39 is not divisible by 2
39 IS divisible by 3
So lets stop right here.
What is 39 divided by 3? 13 !
And 13 is a prime number too!
So that is all we can do.
So prime factorization of 39 is <u>3 x 13</u><u><em /></u>
Answer: -2
(-5)(-1)x=(10)(-1)
5x = -10
x = -2