Question

i cant figure out x^4-52x^2+576=0

Answer 1

(x^2 - 16)(x^2 - 36)
(x - 4)(x + 4)(x - 6)(x + 6)
x = -6, -4, 4, 6

Answer 2

thanks need help with 4 more x^4-7x^2+12-0

Answer 3

four more??
have you tried them?

Answer 4

yes ive tried and tried all night its too hard

Answer 5

it's never too hard
x^4-7x^2+12 = 0
(x^2 - 3)(x^2 - 4)
(x^2 - 3)(x + 2)(x - 2)
\[x = \pm \sqrt3, \pm 2\]

Answer 6

i dont no how to post that symbol on my pc

Answer 7

just do -2, 2, -sqrt 3, sqrt 3
i'm on a pc too

Answer 8

thanks again i wish i had a teacher for this

Answer 9

15x^4-14x^2+3=0