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Select the correct choice below and fill in any answer boxes in your choice.

Select the correct choice below and fill in any answer boxes in your choice.-example-1

1 Answer

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The given equation is:


x(3x-8)=(3x+6)(x-6)

Expand both expressions on the left and right side of the equation and solve the equation for x:


\begin{gathered} 3x^2-8x=3x^2-18x+6x-36 \\ 3x^2-8x=3x^2-12x-36 \\ \text{Collect like terms:} \\ 3x^2-3x^2-8x+12x=-36 \\ 4x=-36\Rightarrow(4x)/(4)=-(36)/(4) \\ x=-9 \end{gathered}

Hence, the solution set is {-9}. Option (A).

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