Question

Solve x4 = 36x2. Identify any double roots
A. {0 (double root), 6, –6}
B. {–3, 3, 2 (double root)}
C. {0, 3, 2}
D. {6, –6}

Answer 1

I put D as the answer because 6,-6 is the answer but I am wondering if A may be the answer.

Answer 2

\[x^4-36x^2=0\]\[x^2(x^2-36)=0\]\[x*x(x-6)(x+6)=0\]

Answer 3

This is what I got x^2(x+6)(x-6)

Answer 4

since there is x^2 does that mean that 0 might be the double root

Answer 5

Yes it does

Answer 6

so the answer would be A right

Answer 7

yup

Answer 8

Thank you so much. I was really confused

Answer 9

Np