Question

If a-b=3 and a^2+b^2=29,find the value of ab

Answer 1

here's the solution.

Answer 2

Hey !!! ^_^

Here is your answer

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⏩GIVEN

a - b = 3

${a}^{2} + {b}^{2} = 29$
ab = ??


a³ - b³ = (a - b)(a² + b² + ab)


(a - b)(a² + b² + ab) = 0

3( 29 + ab) = 0

87 + 3ab = 0

3ab = - 87

ab = (-29)



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