kentaviouswilliams20 kentaviouswilliams20

19-03-2020
Mathematics

contestada

Which are the solutions of the quadra
x2 = 7x + 4

Respuesta :

mozgfed85 mozgfed85

20-03-2020

Answer:

x1=(7-√65)/2

x2=(7+√65)/2

Step-by-step explanation:

x^2=7x+4

x^2-7x-4=0

D=(-7)^2-4*1*(-4)=49+16=65

x1=(-(-7)-√D)/(2*1)=(7-√65)/2

x2=(-(-7)+√D)/(2*1)=(7+√65)/2

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