Question 273233
Factor:
{{{36-49z^2}}} Rewrite this as the difference of squares:
{{{(6)^2-(7z)^2}}} The difference of squares can be factored thusly:
{{{A^2-B^2 = (A+B)(A-B)}}} so...
{{{(6)^2-(7z)^2 = highlight((6+7z)(6-7z))}}}