factorise 25a square - 4bsquare + 28bc - 49c square
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Hi!!!!
Here is the answer_______________________________________________________________
=25a^2-4b^2+28bc-49c^2
=(5a)^2-(2b) ^2+(-4b)(-7c)-(7c)^2
hope it hlpzz....
Here is the answer_______________________________________________________________
=25a^2-4b^2+28bc-49c^2
=(5a)^2-(2b) ^2+(-4b)(-7c)-(7c)^2
hope it hlpzz....
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