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24 August, 00:51

What is the value of the expression 3a2 - 4|a| + 6 when a = - 3?

(1) - 24 (3) 21

(2) - 9 (4) 45

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  1. 24 August, 01:07
    0
    3a² - 4|a| + 6

    3 (-3) ² - 4|-3| + 6

    3 (9) - 4 (3) + 6

    27 - 12 + 6

    15 + 6

    21
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