Question

(c) if a - b = 10, ab = 25, find the value of a³-b³

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Answer 1

Answer:

$a3 \: b3 = ab = 25 \\ 25 \div 10 = 2.5$

Step-by-step explanation:

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Answer 2

Answer:

a³-b³=(a-b)+3ab (a-b)

=(10)³+3×25 (10)

1000+75×10=1000+750

ans: 1750