Question

Find all the zeroes for the function:
f(x) = 3x^4 - 6x^2

Answer 1

take out 3x^2 so:
\[3^{2}(x ^{2}-2) = 0\]
\[3x ^{2}(x-\sqrt{2})(x+\sqrt{2}) = 0\]
\[x = 0,\sqrt{2},-\sqrt{2}\]

Answer 2

3^2 in top line is supposed to be 3x^2, however it does not change the answer.