Answer:
(4,7)
Step-by-step explanation:
Answer would be -4 5/12
Hope that helps.
143 is composite. To be prime it has to have only 2 divisors i.e it's self and one but since it has 4 divisors ( 143, 1, 11 and 13) it is composite.
I think it is number 2, x^2-x+2