List all possible rational roots for the given equation. x^4-8x^2+8x+15=0

Use synthetic division to test the possible rational roots and find actual roots.

The rational roots you found are -3,-1
Now use your quotient from the synthetic division to find the remaining zeros of the polynomial function.

The remaining zeros of are ? and ? .

Question

List all possible rational roots for the given equation. x^4-8x^2+8x+15=0

Use synthetic division  to test the possible rational roots and find  actual roots.

The rational roots you found are -3,-1 
Now use your quotient from the synthetic division to find the remaining zeros of the polynomial function.

The remaining zeros of  are  ? and ? .

anonymous · Answer

the possible rational roots are the divisors of 15, namely 
$$\pm1, \pm3,\pm5,\pm15$$ is you know two of them you know them all. divide and solve the resulting quadratic equation