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Sedbober [7]
2 years ago
5

Help me plz! 9ubiesnfhduryinwiwybv

Mathematics
2 answers:
Ugo [173]2 years ago
8 0

Answer:

-8

Step-by-step explanation:

10 -2b^2

Let b=-3

10 - 2( -3)^2

Do the exponent first

10 -2(9)

Multiply

10 -18

Subtract

-8

Alex17521 [72]2 years ago
6 0

Answer:

- 8

Step-by-step explanation:

Given

10 - 2b² ← substitute b = - 3 into the expression

= 10 - 2(- 3)²

= 10 - 2(9)

= 10 - 18

= - 8

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Step-by-step explanation:

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