watkinnsc363 watkinnsc363

05-02-2020
Mathematics

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evaluate 2b² - 3b + 4a² for a= -6 and b=8

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texaschic101 texaschic101

05-02-2020

Answer:

Step-by-step explanation:

2b^2 - 3b + 4a^2........a =-6 and b = 8

now we sub

2(8^2) - 3(8) + 4(-6^2)

2(64) - 24 + 4(36)

128 - 24 + 144

272 - 24

248 <==

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