Spidey4321 Spidey4321

25-02-2017
Mathematics

contestada

Find the value of 2a² + 5b² when a = -6 b= 2

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JimmyJee JimmyJee

25-02-2017

-6^2 = 36 so 2x36 = 72 and 2^2 = 4 so 5x4 = 20
= 72 + 20 = 92

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