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
Vysvětlení
Where the curve cut x-axis is the root of the equation i.e. x = -2.0 and x = 1.5
From the graph determine the roots of the equation y = 2x\(^2\) + x - 6