Simplify: (0.87 * 0.87 * 0.87 + 0.13 * 0.13 * 0.13) / (0.87 * 0.87 – 0.87 * 0.13 + 0.13 * 0.13).
A0.74
B0.87
C1.00
D1.13
Explanation
Expression is of form (a^3 + b^3) / (a^2 – ab + b^2) = a + b. Here a = 0.87, b = 0.13. Sum = 0.87 + 0.13 = 1.00.
Exam Relevance
- Topic: Simplification
- Subtopic: Algebraic Identities

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