What are the solutions of the equation x4 – 9x2 + 8 = 0? use u substitution to solve.

Step-by-step explanation:

We have the following equation

To solve this problem, do:

then it has:

Then he has a second-degree equation.

To resolve factor.

You must find 2 numbers that when you add them get -9 and multiply them get 8.

These numbers are:

u = -1 and u = -8

Then it has:

and

Remember that

Then it has:

ANSWER

EXPLANATION

Given;

We can rewrite as

Let

This implies that,

This implies that,

But

This implies that,

1. 8

2. 9

3. 20

4. 3

5. 17

6. 2.2

7. 11.25

8. 1

9. 14

10. 2

step-by-step explanation:

thats the first half

whatare you sayig

step-by-step explanation: