becky300 becky300

15-08-2022
Mathematics

contestada

When 2x^2-20x+39=9 is written in the form (x-p)^2 =q, what is the value of q?

A) 10
B) 9
C) 5
D) -30

Respuesta :

Medunno13 Medunno13

17-08-2022

[tex]2x^2 - 20x+39=9 \\ \\ 2x^2 - 20x=-30 \\ \\ x^2 -10x=-15 \\ \\ x^2 - 10x+25=10 \\ \\ (x-5)^2 = 10 \\ \\ \implies \boxed{q=10}[/tex]

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