Question 195462
1){{{(2t-2)^2}}}
{{{(2t-2)*(2t-2)}}}
{{{4t^2 -4t -4t + 4}}}
{{{4t^2 - 8t + 4}}}

Use this URL to factor the others
http://72.3.253.76/webMathematica3/quickmath/page.jsp?s1=algebra&s2=factor&s3=basic