Jasten
11.09.2021 •
Mathematics
Evaluate the following if y=−3: 2y^2 −4y −9
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Ответ:
21
Step-by-step explanation:
2(-3)^2-4(-3)-9
18+12-9
-3^2=9
2*9=18
Ответ:
21
Step-by-step explanation:
2y^2-4y-9
2(-3)(-3)-4(-3)-9
2(9)-4(-3)-9
18+12-9
30-9
21
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Ответ: