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19-06-2017
Mathematics

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What are the x-intercepts of the graph of the function f(x) = x2 + 4x – 12?

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rkroblox rkroblox

19-06-2017

(x+6)(x-2)

x=2 and x=-6.

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19-06-2017

The x-intercepts occur when f(x)=0

x^2+4x-12=0 factor

x^2-2x+6x-12=0

x(x-2)+6(x-2)=0

(x+6)(x-2)=0

x=-6 and 2 or specifically the points (-6,0) and (2, 0)

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