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WAEC - Mathematics (2004 - No. 40)

Use the graph to answer the Question below
What are the roots of the equation x2 + 3x - 4 = 0?
1, 4
-1, -4
-1, 4
-4, 1

Explication

x2 + 3x – 4 = 0 has roots value at the curve makes touches with the x – axis. The curve contact is at x = -4 and +1.

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