angel40onlyme angel40onlyme

10-04-2017
Mathematics

contestada

If f(x)=-x+5 and g(x)=x^2, what are the solutions of the equation f(x)=g(x), rounded to the nearest tenth

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girleygirl110 girleygirl110

16-04-2017

-x+5=x^2
x^2+x-5+0

x=-1+-sqrt (1+20)/2

x= -1+-sqrt (21)/2

x=-1+- 4.6/2

x=-1+4.6/2
x=3.6/2
x=1.8

x=-1-4.8/2
x=-5.8/2
x=-2.9

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