Answer:
x+y=5
(x+y) ³ =125
x ³ +y ³ +3xy(x+y)=125
x ³ +y ³ +3xy(5)−125=0
x ³+y³ +15xy−125=0
Step-by-step explanation:
(x+y)
3
=125
x
+y
+3xy(x+y)=125
+3xy(5)−125=0
+15xy−125=0.
I HOPE HELP.
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Answers & Comments
Answer:
x+y=5
(x+y) ³ =125
x ³ +y ³ +3xy(x+y)=125
x ³ +y ³ +3xy(5)−125=0
x ³+y³ +15xy−125=0
Verified answer
Step-by-step explanation:
x+y=5
(x+y)
3
=125
x
3
+y
3
+3xy(x+y)=125
x
3
+y
3
+3xy(5)−125=0
x
3
+y
3
+15xy−125=0.
I HOPE HELP.