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Determine where f(x) intersects the x-axis.

 

f(x)=x^2+5x+6

 

cool

 Oct 15, 2015
 #1
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Hallo guest

laugh

 Oct 15, 2015
 #2
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Determine where f(x) intersects the x-axis ( f(x) =0) .

f(x)=x^2+5x+6

 

 

\(\begin{array}{rcl} &x^2+5x+6 &=& 0\\ \text{Factorisation }& (x+2)(x+3) &=& 0\\ &x_1 &=& -2\\ &x_2 &=& -3 \end{array}\)

 

laugh

 Oct 16, 2015

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