Question

${2}^{x {}^{2} } - 4x = 1$
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Answer 1

Resposta:

x1=2,224744871 x2=−0,224744871

Explicação passo-a-passo:

a=2 b=-4 c=-1

∆=-4.(-4)-4.2.(-1)

∆=16+8

∆=24

x=-(-4)+ou-√24/2.2

x=4+ou-4.89897948557/4

x1=4+4.89897948557/4

x1=8.89897948557/4

x1=2,224744871

x2=4-4.89897948557/4

x2=−0,898979486/4

x2=−0,224744871