Kourtni15
Kourtni15
14-03-2017
Mathematics
contestada
How do you Factor 2x^4+x^2-6
Respuesta :
mannyow
mannyow
14-03-2017
(2x^2-3)(x^2+2)
this is the answer
Answer Link
apologiabiology
apologiabiology
14-03-2017
use u subsitution
u=x²
2u²+u-6
now do ac method
2 times -6=-12
what 2 numbers multiply to -12 and add to get 1
-3 and 4
split the middle temr like that
2u²+4u-3u-6
group
(2u²+4u)+(-3u-6)
factor
2u(u+2)+(-3)(u+2)
undistribue
(2u-3)(u+2)
u=x²
(2x²-3)(x²+2)
Answer Link
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