Treat x^4 as the square of p: x^4 = p^2.
Then x^4 - 5x^2 - 36 = 0 becomes p^2 - 5p - 36 = 0.
This factors nicely, to (p-9)(p+4) = 0. Then p = 9 and p = -4.
Equating 9 and x^2, we find that x=3 or x=-3.
Equating -4 and x^2, we see that there's no real solution.
Show that both x=3 and x=-3 are real roots of x^4 - 5x^2 - 36 = 0.
Answer:
28
Step-by-step explanation:
Step-by-step explanation:
The point-slope form of a line is given by
where 
is the point on the line. So we can write the equation as
Answer: since his rock collection has 25 fewer rocks, and his contains 125,
Add that= 125+25=150
Step-by-step explanation: hope this helps
Answer:
100
Step-by-step explanation:
something about them being diagnol to each other makes them equal
havent done geometry in a while lol
hope this helps <3
