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29-09-2014
Mathematics

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Let f(x) = x2 - 3x - 7. Find f(-3)

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29-09-2014

[tex]f(x)=x^2-3x-7\\\\ f(-3)\\ Substitute\ x=-3\\\\ f(-3)=(-3)^2-3*(-3)-7\\ f(-3)=9+9-7=18-7=11\\\\\ Solution\ is\ f(-3)=11[/tex]

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