Nikkicole13 Nikkicole13

14-12-2021
Mathematics

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What are the roots of the function?
f(x) =x^2 + 2x – 80

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jeycharo46 jeycharo46

14-12-2021

Answer:

x^2+2x-8= x^2+10x-8x-80 =x(x+10)-8(x+10)

=( x-8) (x+10)

therefore x= 8 or x=-10

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