Math, asked by AkarshGRao1357, 8 months ago

If a3 + b3 = 28 and a + b = 4, then what is the value of ab?

A) -3 B) 2 C) 8 D) 3

Answers

Answered by yaxpatel10

0

Step-by-step explanation:

a³+b³=(a+b)²+3ab×(a+b)

28=(4)³+3ab(4)

28=64+12ab

12ab=64–28

12ab=36

ab=36÷12

ab=3

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