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Solve by two methods, quadratic equation and factoring:
2x^2-x-15=0
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As I just said in https://www.algebra.com/algebra/homework/quadratic/Quadratic_Equations.faq.question.1038843.html,
solve on your own at least by the quadratic formula.
Demonstrate that you can do this arithmetic.
Comment from student:
Solve by 2 methods,Quad Equation and Factoring : 2x^2-x-15=0
You ask me to show, this may or may not be right
X=-b±√b^2-4ac/2a. a=2, b= -1, c= -15 X=-(-1)±√1^2+4^2(-15)/2^2 X1,2=(1±11)/2^2 X1=12/4= 3 X2=-10/4= -5/2
Having problems with getting my zero Factoring right and checking problem
My responce: Bravo that you found a courage to start it.
Your calculations are incorrect, and I see that you really need help. Let me fix it:
X = = = = .
= = , = = .
Now factoring:
= = = .