What is the sum? (1/x+2)+(1/x+3)+(1/x^2+5x+6)

a. 2/x+2
b. 1/x+1
c. -2/(x+3)(x+2)
d. -2(x-3)/(x+3)(x+2)

What set does not contain -3 the set of all real numbers the set of all integers the set of all whole numbers the set of all rational numbers

Aflower has 26 chromosomes. to create a new flower,how many would a sperm cell have what is called?

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9