It is given that a sup2 3a ndash 1 amp b sup2 3b 1 then calculate value of 24ab sup2 24a sup2 b ...........

Quantitative Aptitude (CDS) Quadratic Equations

It is given that a² = 3a – 1 & b² = 3b - 1 then calculate value of 24ab² + 24a²b .

Replace a or b by x then equation is x²=3x-1
x²-3x+1=0
a+b = 3
a.b = 1
24ab² + 24a²b = 24ab (a+b)
Put the value of (a+b) & ab we get = 72

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