What are the solutions of the equation x6 – 9x3 + 8 = 0? use u substitution to solve. x = –1 and x = –2 x = 1 and x = 2

and

Step-by-step explanation:

Let

Remember that

If

then

we have

Substitute

The formula to solve a quadratic equation of the form is equal to

in this problem we have

so

substitute in the formula

remember that

so

for

------->

for

------->

answer: ask

step-by-step explanation: