atwhitlock7721 atwhitlock7721

03-10-2018
Mathematics

contestada

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

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jimrgrant1 jimrgrant1

03-10-2018

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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