If 3 + 5 – 8 = 0, then find the value of (3)3 + (5)3– (8)3 .

1.	If 3 + 5 – 8 = 0, then find the value of (3)3 + (5)3– (8)3 .
Answer» Given : 3 + 5 + (-8) = 0. Then, 3³ + 5³ + (-8)³ = ? Using, identity... If a + b + c = 0, then a³ + b³ + c³ = 3abc Let a = 3, b = 5 and c = -8. Here, a + b + c = 3 + 5 + (-8) = 0. Then, a³ + b³ + c³ = 3abc = 3 x 3 x 5 x -8 = 9 x -40 = -360

Answer»

Given : 3 + 5 + (-8) = 0.

Then, 3³ + 5³ + (-8)³ = ?

Using, identity...

If a + b + c = 0, then a³ + b³ + c³ = 3abc

Let a = 3, b = 5 and c = -8.

Here, a + b + c = 3 + 5 + (-8) = 0.

Then, a³ + b³ + c³ = 3abc

= 3 x 3 x 5 x -8

= 9 x -40

= -360

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If 3 + 5 – 8 = 0, then find the value of (3)3 + (5)3– (8)3 .

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