Sum of the Solutions of a Quadratic with Desmos SAT Bluebook Test 2

This video shows 3 ways to solve Bluebook Test 2 Module 2b Question 12.
This question asks for the sum of the solutions of a quadratic.
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[@aaron_teensg2570]

Thank you sooooo muchhhhh!!!!!!!!!!!

[@TestPrepTutoring]

Thanks for commenting! Any other questions you’d like me to cover?

[@milindsingh6011]

How did you solve for 29/3? Everytime I try to convert the decimal it gives me 9667/1000. Also on my Desmos it gives me 4 digits of 6 as in 9.66667 when you add the points together. How are you getting 9.667 on your desmos?

[@TestPrepTutoring]

Quadratics Reference Sheet docs.google.com/document/d/1E5g6s40STeUQ8awX2Qa0Nz4vX2D_opT3qMKGVDz0v0c/edit?usp=sharing