Which system of equations can be used to find the roots of the equation 12 x cubed minus 5 x is equal to 2 x squared plus x plus 6 ?

To find the roots, graph the two sides of the equation as separate expressions for y. The left side gives y = 12x³ − 5x, and the right side gives y = 2x² + x + 6. Their intersection points have equal y-values, so their x-coordinates solve the original equation. This is choice D.

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