Competitive Quantitative Aptitude Algebra Polynomials

Difficult

If $a^{3}-b^{3}=91$ and $a-b=1$,what is the value of $(ab)$?

A
$27$
B
$6$
C
$9$
D
$30$

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Competitive

Quantitative Aptitude Questions

Chapter

Algebra

Subtopic

Polynomials

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