Question 181661
Hi Mary: lets rewrite this and maybe you'll get an idea of how to do this next time you see it{{{25x^2 - 36}}}......rewrite to:
:
{{{(5x)^2-6^2}}} if you look closely you should see something familiar
:
{{{a^2-b^2}}}difference of squares just plug in the numbers for that formula
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using 5x for a and 6 for b.
:
{{{(5x-6)(5x+6)}}}