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11 August, 00:32

Find the value of 2a squared + 5b squared when a = - 6 and b = 2

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  1. 11 August, 01:08
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    92

    given 2a² + 5b²

    substitute given values for a and b into the expression

    2 ( - 6) ² + 5 (2) ² = (2 * 36) + (5 * 4) = 72 + 20 = 92
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