10 + 43 - 5 = 48
5^2 = 25
48/6 = 7
7 + 25 = 32
Answer 32
Answer:
To get to the other side :o
Step-by-step explanation:
So first the chicken walks across the road and then gets to the other side mark brainliest please :)
Answer:
roots : 4, -4, i, -i
Step-by-step explanation:
This gets a bit tricky.
We have to substitude x^2 as u in this problem.
Now to rewrite x^4 − 15x^2 − 16 = 0 with u, we get
u^2 - 15u - 16 = 0
( u - 16) (u + 1)
U = 16
U = -1
<em>This is not the end of the problem. </em>
Now we have to substitute x^2 back to u.
x^2 = 16 --> we get the roots 4 and -4
x^2 = -1 --> we get the roots i and -i
tadah!
The graph crosses the x axis 3 times so there are 3 roots.
B
