Please show a pic so i can understand better
Answer:
x²-9=x²-3²=(x+3)(x-3)
Step-by-step explanation:
use formula
a²-b²=(a+b)(a-b)
Answer:
3
Step-by-step explanation:
P is the in-center
⇒PA=PE=PD because they are in-radius of the in-circle
We know that, tangent segments drawn from a point outside the circle are always equal in length
⇒DK=EK=7.2
In right triangle PKE,
using Pythagoras' Theorem : 
⇒
⇒
⇒
⇒
Therefore, 
The absolute value of -72 is 72.
Absolute value is essentially just making the number given positive.
If the given number is already positive then the absolute value is the same as the original number
Hope this helped!
~Just a girl in love with Shawn Mendes