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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