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01-04-2017
Mathematics

contestada

Solve for z.
z^2+15z+14=0

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Аноним Аноним

02-04-2017

z = {- 15 +- root of ( 225-56) } / 2
= {-15 +- 13 } / 2
= -14 or -1

so, z = -14 or -1

hope it helped

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