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Question

Question: If\(x^{2} + ax + b = 0\),then x is equal to....

Ifx2+ax+b=0x^{2} + ax + b = 0,then x is equal to.

A

2

B

3

C

6

D

5

Answer

6

Explanation

Solution

α,β,γ\alpha,\beta,\gamma

α3β3γ3\alpha^{3}\beta^{3}\gamma^{3}

on squaring, x4−2x3+x=380x^{4} - 2x^{3} + x = 380

5,−4,1±5−325, - 4,\frac{1 \pm 5\sqrt{- 3}}{2}.