Algebra 2 Quadratic Functions Lesson 4 Factoring by Grouping HW Review Part 4

In this video we find the zeroes of a four term polynomial with our graphing calculator using the table. We show these numbers are zeroes by plugging into the expression and seeing that the result will be zero.
We then factor the expression using factoring by grouping. If we set these factors equal to zero, we see that the results are the same zeroes from the table.
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