Question

a + b + c = 7 and ab + bc + ca = 15, prove that a3 + b3 + c3 - 3abc = 28.​

Answer 1

Answer:

here is the answer

Step-by-step explanation:

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Answer 2

Answer:

$2 \times 3 = 129 = 5523634 \times \div - + 3$

Step-by-step explanation:

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