WAEC - Mathematics (1990 - No. 10)

From the graph determine the roots of the equation y = 2x\(^2\) + x - 6

-3, 4
-2, -6
-2, 1.5
-1, 1
2, 1.5

Explanation

Where the curve cut x-axis is the root of the equation i.e. x = -2.0 and x = 1.5

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