Answer:
-2
Step-by-step explanation:
Answer:
(x+7)^2+4
Step-by-step explanation:
(x+7)^2 + 4
x^2+14x+49+4
x^2+24x+53
Since the sum of third side of a triangle is smaller than the sum of other two sides
So n<12+5
n<17
No the inequality symbol only changed when you divide a negative number from both sides.