Question #919b3

Jan 31, 2017

#36x^2-25=(6x+5)(6x-5)#

Using the difference of squares formula #a^2-b^2 = (a+b)(a-b)#, we have

#36x^2-25 = 6^2x^2-5^2#

#=(6x)^2-5^2#

#=(6x+5)(6x-5)#

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