Question

solve please: x^4+4x^2-12=0

Answer 1

what are 2 factors that multiply to -12 and add up to 4

Answer 2

hint:put those factors here
(x^2- )(x^2+ )

Answer 3

set equal to zero and solve

Answer 4

this is factorable.
put it into this format:
(x+?)(x+?). the numbers should be two numbers that multiply to -12 (a*c) and those same two numbers that add up to 4 (b)
if ax^2+bx+c=0.

Answer 5

i'll give you a clue: one of the numbers is positive 6.

Answer 6

after you put it into (x+k)(x+l) (where k and l are the 2 numbers),
do x+k=0 and x+l=0 and there are your answers.