Destinationz Destinationz

25-04-2019
Mathematics

contestada

f(3)=x^(3)-19x+30

Show that is equation = 0

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lordnewell lordnewell

25-04-2019

Sub in 3 for all the x: =(3)³ - 19(3) +30

Expand the brackets: =27 - 57 + 30

Solve the equation: =0

Say you've solved it: QED

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