Question

f(x) = − x^2 + 8 – 12

Answer 1

Respuesta:

f(x) = − x^2 + 8 – 12

x2+fx+4=0  

(1)⋅x2+(f)⋅x+(4)=0

x=−(f)±(f)2−4⋅(4)−−−−−−−−−−√2

x=−f±f2−(16)−−−−−−−−√2

x=−f±f2−16−−−−−−√2

x1=−f+f2−16−−−−−−√2

x2=−f−f2−16−−−−−−√2