Question

Write a linear factorization of the function.
f(x) = x4 + 16x2

Answer 1

write x^4 as x^2*x^2....then take out x^2 common...can u do this?

Answer 2

take x2 common

Answer 3

f(x) = x^2 (x^2 + 16)

Answer 4

there you go! (:

Answer 5

I got f(x) = x2 (4x + i)(4x - i)

Answer 6

hmm, I didn't know that you were asking to factor so far.
Are there answer choices?

Answer 7

its should be f(x) = x2 (x + 4i)(x - 4i)
check again...

Answer 8

How did you get (x + 4i)(x- 4i) ? @hartnn

Answer 9

do u know what 'i' stands for??

Answer 10

Imaginary number. A negative radical. i = -1

Answer 11

its an imaginary number,but its square root of -1

Answer 12

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

Answer 13

I know...

Answer 14

So how did you find the sum of squared roots?

Answer 15

ok,so \[\sqrt{a^2+b^2}=(a+i*b)(a-i*b)\]
i have used this...now it would be clear to u...

Answer 16

Thanks (: I gave you a medal! @hartnn

Answer 17

@gps she asked whether its f(x) = x2 (4x + i)(4x - i) which means she knew it...
@Lol9999 thanks