## anonymous 5 years ago i cant figure out x^4-52x^2+576=0

1. anonymous

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

2. anonymous

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

3. anonymous

four more?? have you tried them?

4. anonymous

yes ive tried and tried all night its too hard

5. anonymous

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

6. anonymous

i dont no how to post that symbol on my pc

7. anonymous

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

8. anonymous

thanks again i wish i had a teacher for this

9. anonymous

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