Given 2 angle : 45 and 90 (right angle)
==> 180-45-90 = 45
3
We found the factors and prime factorization of 9 and 12. The biggest common factor number is the GCF number. So the greatest common factor 9 and 12 is 3.
The second one because you times the exponents together
Start by combining like terms:


Now we have:

Divide both sides by 2 to isolate s

Final answer:
s=12