Answer:
10
Step-by-step explanation:
Answer:
<em>Ethan is 31 years old.</em>
Step-by-step explanation:
If Alex is 7 years younger than Ethan, then Ethan is 7 year older than Alex.
Alex is 24 years old, so Ethan is 24 + 7 years old.
24 + 7 = 31
Ethan is 31 years old.
G^5 -g = g(g^4 -1)=g(g^2 -1)(g^2 +1) = g(g-1)(g+1)(g^2 +1)
24g^2 -6g^4 = 6g^2(4 -g^2) = 6g^2(2 -g)(2 +g)