Question

When three times a number is added to the square of the given number , result isv54. What is the number

Answer 1

number is 6 x^2 +3x= 54

Answer 2

$\huge\boxed{\texttt{\fcolorbox{Red}{aqua}{Hey \: Mate}}}$

Here is your answer

Let the number is x

ATQ
$3x + {x}^{2} = 54 \\ {x}^{2} + 3x - 54 = 0 \\ {x}^{2} + 9x - 6x - 54 = 0 \\ x(x + 9) - 6(x + 9) = 0 \\ (x + 9)(x - 6) = 0 \\ x = 6 \: \: and \: \: - 9$
As the number is not negative

Therefore the number is 6

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