1.) Be sure to spend at least 20 minutes on Khan Academy by Monday!
2.) In the problem set (image) below, complete each of the following: 57, 59, 63, 69
- For 57 simply use the quadratic formula to find the zeros of the polynomial
- For 59, you can either "solve for x" without factoring, or can factor this as a difference of two perfect squares!
- For 63 and 69, look at today's example from class...
- First, find real zeros using a graphing calculator (there is a Desmos online calculator linked on the right if you don't have one!)
- Pay attention to whether the graph "crosses" or "bounces"--if it bounces at a zero, use that zero twice!
- Perform (repeated) synthetic division
- For 63, you should do synthetic one time and arrive at a quadratic--then, use the quadratic formula to find the zeros from this quadratic, as it cannot be factored
- For 69, you will do synthetic twice and then you can find the remaining zeros without any more factoring
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