20-12-2017
Mathematics

contestada

Solve using the quadratic formula a^2 +2a-8=0

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luqa151p0godw luqa151p0godw

20-12-2017

a= - 2 Sqrt[2^2-4 (-8)]/2
a= - 2 + and - Sqrt[36]/2
a = 2 or a = 4

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