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I need to find the zeros to these two problems and I have no idea how

I need to find the zeros to these two problems and I have no idea how-example-1
User S Anand
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If you have a graphing calculator just put in the equation in 'y=' (not the i equation), and then go to 2nd trace and see where the y=0, those numbers under the x column are the zeros. For the first one, the zeros are: -1, .5, and 2.8. For the second question the zeros are: -3 and about 1.9. The zeros with a decimal are estimations.
User Hui Liu
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