How do you factor # 243-3t^4#?

1 Answer
Jun 29, 2016

Answer:

#3(9+t^2)(3+t)(3-t)#

Explanation:

To factor #243-3t^4#

Begin by factoring out the common factor 3

#3(81-t^4)#

Now recognizing #81-t^4# as the difference of two squares we can factor the binomial.

#3(9+t^2)(9-t^2)#

Now recognizing #9-t^2# as the difference of two squares we can factor the binomial.

#3(9+t^2)(3+t)(3-t)#