factorise : x³+y³+15x-125
Answers
Answered by
0
Step-by-step explanation:
(x-5) ^ 3
.
hope this will help you
Answered by
2
x³+y³+15xy-125
=x³ + y³ +3xy × 5 - 125
= x³+y³+3xy ( x+y ) - 5³
=( x+y )³ - (5)³
=(5)³-(5)³
=0 (ans)
Similar questions