Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter9: Quadratic Functions And Equations
Section9.3: Solving Quadratic Equations By Graphing
Problem 5GP
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I am having trouble understanding roots. In the question y=x^4-x^2, the roots are 1,-1,0. I get why the -1 and 1 are roots but I don't get why 0 is a root. Can someone please explain?
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