Math, asked by subhashagarwal12398, 2 months ago

8. If a - b = 4 and ab = 45, then
the value of (a3-b3) is​

Answers

Answered by rajeevmr434
1

Answer:

a

3

−b

3

=(a−b)(a

2

+ab+b

2

)

a

3

−b

3

=(a−b)(a

2

−2ab+b

2

+2ab+ab)

a

3

−b

3

=(a−b)[(a−b)

2

+3ab]

a

3

−b

3

=4×(4

2

+3×45)=4×(16+135)=4×151=604

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