Question 76162
{{{(3x^2 - 1)^2}}} This can be written as: {{{(3x^2 - 1)(3x^2 - 1)}}}
{{{3x^2*3x^2-3x^2-3x^2+1}}} foil the parenthesis
{{{9x^4-6x^2+1}}} Combine like terms