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27 October, 11:43

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

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  1. 27 October, 12:08
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    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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