1.

Factorize:10x4 y – 10xy4

Answer»

10x4 y – 10xy4 

= 10xy(x3 − y3)   [a3 – b3 = (a – b)(a2 + ab + b2)] 

= 10xy (x−y)(x2 + xy + y2

Therefore, 10x4y – 10xy4 = 10xy (x−y)(x2 + xy + y2)



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