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30 April, 17:48

Find the value of 2a2+5b2 when a = - 6 and b = 2 (the last 2 on 5b and 2a are indices)

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  1. 30 April, 19:12
    0
    92

    Step-by-step explanation:

    Substitute the given values for a and b into the expression.

    2a² + 5b²

    = 2 * ( - 6) ² + 5 * 2²

    = (2 * 36) + (5 * 4) = 72 + 20 = 92
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