Value of 7cube +(-8cube)+(-1cube) without finding the cube
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Answered by
2
Answer:
856
Step-by-step explanation:
Answered by
1
Step-by-step explanation:
let x=7 y= -8 and z= 1
x+y+z= 7-8+1
=0
so
x^3 + y^3 +z^3= 3xyz
=3(7)(-8)(1)
=21×-8
=-168
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