factorise: x4y4-256z4

Asked by Prashanth Balasubramaniam | 2nd Oct, 2012, 05:32: PM

Expert Answer:

Answer : Given :  to factorise the equation x4y4-256z4  
 
= x4y4-256z4
= (x2y2-16z2) (x2y2+16z2)   { a2 -b2 = (a+b) (a-b) }
(x2y2+16z2) (xy + 4z) (xy-4z) Answer {a-b= (a+b) (a-b) }

Answered by  | 2nd Oct, 2012, 11:08: PM

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