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Properties of Multiplication of Integers

Evaluate: 303...

Question

Evaluate: 30³ + 20³ – 50³.

A

36000

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B

-90000

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C

15000

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D

90000

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Solution

The correct option is B
-90000

Let a = 30, b = 20 and c = -50. Then, a + b + c = 0

a³ + b³ + c³ = 3abc = 3 × 30 × 20 × (-50) = -90000

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30^{3} + 20^{3} - 50^{3}

Q. Write the value of 30³ + 20³ − 50³.

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(30)^{3} + (20)^{3} + (- 50)^{3}

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