Answer:
2
Step-by-step explanation:
Using the rule of radicals
× ⇔
Simplifying the radicals
=
= × = 4
= × = 2
Thus
+ 2 - 2
= 4 + 2 - 4 ← collect like terms
= 2
the answer is =-3±/2
Answer: 45
130
All of the angles on a triangle add up to 180 degrees.
The answer is in the image: