Question

Evaluate (-12^3)+7^3+5^3 in polynomials

Answer 1

Step-by-step explanation:

(i) (-12)³ + (7)³+ (5)³

 Let x = -12, y = 7 & z = 5

x + y + z = -12 + 7 + 5 = 0

Here, x + y + z = 0

We know that if,

x + y + z = 0, then x³ + y³ + z³ = 3xyz

(-12)³ + (7)³ + (5)³ = 3(-12)(7)(5) = -1260

(-12)³+ (7)³+ (5)³ = - 1260

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Answer 2

Step-by-step explanation:

(-12³)+7³+5³

= The all power is same

If all power same and base is different

Then we add all base

= ( -12 + 7 + 5 )³

= ( -12 + 12 )³

= (0)³

= 0

So, your answer is 0.

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