Question

Question 8
Use property to evaluate
(i)
${9}^{3} - {5}^{3} - {4}^{3}$
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Answer 1

Question:

9^3 + (-5)^3 + (-4)^3

Sum of digits = 9 - 5 - 4 = 0

When a + b + c = 0, then a^3 + b^3 + c^3 = 3abc

9^3 + (-5)^3 + (-4)^3 = 3(9)(-5)(-4) = 540

Answer 2

Answer:

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Step-by-step explanation:

good afternoon