Question

Polynomials - Question is attached

Answer 1

r u giving a test

Answer 2

Taking a practice test

Answer 3

apply quadratic formula

\[x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}\]

just apply this and remember

\[ i = \sqrt {-1}\]

Answer 4

I dont think thats right

Answer 5

I got x=1 and -4

Answer 6

(x-1)(x+1)(x^2+4)
x=1
x=-1
x^2=-4
sqrt(x^2)=sqrt(-4)
x=+- 2i

(when you take the square root of a negative number it becomes a complex number i)

Answer 7

So the answer is x+-1 and x+-2?

Answer 8

x=*

Answer 9

\[x =\pm 1 \ and \ x=\pm2i\]

Answer 10

Thank you so much :)

Answer 11

np :)