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WAEC - Mathematics (2005 - No. 38)

What is the equation of the curve?
\(y=x^2+6x+4\)
\(y=x^2-5x-4\)
\(y=x^2-5x+4\)
\(y=x^2+5x-4\)

Explicaţie

The factor for the curve are (x-1)(x-4). The product off the curves gives \(=x^2-5x+4=y\)

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