Question

Using proper identity , factorize 27 x3 + 125 z3
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Answer 1

Step-by-step explanation:

= ( 3y + 5z ) { ( 3y ) 2 + ( 5z ) 2 - (3y ) ( 5 z )

= ( 3y + 5z ) { 9y 2 + 25z 2 - 15 yz}