factorise 27y^3+25z^3.
Answers
Answered by
1
Answer:
We have,27y
3
+125z
3
=(3y)
3
+(5z)
3
Using x
3
+y
3
=(x+y)(x
2
−xy+y
2
)
=(3y+5z){(3y)
2
−(3y)(5z)+(5z)
2
}
=(3y+5z)(9y
2
−15yz+25z
2
)
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