Question

using the quadratic formula how do you solve 2x^4+5x^2-12=0?

Answer 1

1-substitute x^2=t
2- you will get 2t^2+5t-12=0
do u know how to use quadratic formula now?

Answer 2

yes. Thank you.

Answer 3

ur welcome :)

Answer 4

given:
a=2
b=5 &
c=-12
now plug this values into quadratic formula & gt ur answer:)

Answer 5

and dont forget that u will get 4 solutions

Answer 6

you can't - square roots, right?