tayk717 tayk717

17-12-2020
Mathematics

contestada

solve the equation.
2x2 - x-21 = 0

Respuesta :

indiraadhikari32l indiraadhikari32l

18-12-2020

Answer:

-17

Step-by-step explanation:

2×2-x-21=0

4-x=0+21

-x=21-4

x=-17

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