Question

Has anyone taken Algebra 2 yet?

Answer 1

I took trig....

Answer 2

I need Algebra 2 help

Answer 3

Ask a question.

Answer 4

What are the real or imaginary solutions of the polynomial equation?

x^4-52x^2+576=0

Answer 5

A.) 4, -4
B.) 4, -6
C.) 4, -4, 6, -6
D.) no solution

Answer 6

This is a trigonometric question, But I'll help you with it anyway.

Answer 7

Say the following,

let x^2=a, substitute a for x^2
x^4-52x^2+576=0 ---> a^2-52a+576=0
can you solve for a?

Answer 8

@Coop21, do you need help with this?

Answer 9

Yeah, I'm lost

Answer 10

Do you see how I got a^2-52a+576=0?

Answer 11

I'm so far behind I don't even know how to do anything in this class.

Answer 12

No I don't

Answer 13

Ok, we are making x^2=a right?

Answer 14

yes

Answer 15

So we just called x^2 'a'

so lets substitute a instead of x^2, OK?

Answer 16

Ther is no a in the equation

Answer 17

Yes, but knowing that x^2=a we are going to substitute a for x^2, solve for a, and then substitute the result for a into a=x^2.

Right?

Answer 18

Are you still here, @Coop21?

Answer 19

but it is x^4 not x^2

Answer 20

yes, but we are saying that x^2=a right?

Answer 21

So x^4=a^2 and x^2=a, right?

Answer 22

Sure

Answer 23

Ok, so now we can say that x^4-52x^2+576=0 ---> a^2-52a+576=0

Answer 24

Right?

Answer 25

yes

Answer 26

Which methods do you know to solve this?
Factoring
Quadratic formula
Completing the Square

Answer 27

Completing the Square?

Answer 28

If you don't know how to complete the square, do you want to skip it for now, or learn how to do it?

Answer 29

I have no clue about any of this

Answer 30

not even the quadratic formula?

Answer 31

I taking it now and were doing solving Quadratic Equation by completing the square

Answer 32

Sloving polynomial equations

Answer 33

Cool, @Misswright224. Which one do you like better? Quadratic Equation, completing the square, or factoring?
I like completing square, it rocks.

Answer 34

Completing the square