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Mathematics 21 Online
OpenStudy (anonymous):

What are the solutions of the quadratic equation? x^2 – 9x + 20 = 0 Please show work.

OpenStudy (anonymous):

You want to use trinomial factoring, do you know how to do that?

OpenStudy (anonymous):

(x-4)(x-5)?

OpenStudy (anonymous):

Good. Now you have (x-4)(x-5) = 0. What values of x satisfy this equation?

OpenStudy (anonymous):

oh so the answer is x=4, 5?

OpenStudy (anonymous):

exactly :)

OpenStudy (anonymous):

thanks again

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