How do you factor the trinomial #242a^2 - 2b^2#?
1 Answer
Feb 21, 2017
Explanation:
The difference of squares identity can be written:
#A^2-B^2 = (A-B)(A+B)#
Use this with
#242a^2-2b^2 = 2(121a^2-b^2)#
#color(white)(242a^2-2b^2) = 2((11a)^2-b^2)#
#color(white)(242a^2-2b^2) = 2(11a-b)(11a+b)#
