espinallinda13 espinallinda13
  • 19-11-2021
  • Mathematics
contestada

This is the graph of y = x2 -7x + 3. Work out x2 -7x + 3 = 0 (careful with the scale).

Respuesta :

DrRKD DrRKD
  • 22-11-2021

Answer:

x=6.54138

x=0.458619

Step-by-step explanation:

using the Quadratic Formula where

a = 1, b = -7, and c = 3

x=−b±[tex]\sqrt{b^{2} -4ac}[/tex]/2a

x=−(−7)±√[(−7)2−4(1)(3)]/2(2)

x=7±√(49−12)/2

x=7±√37/2

The discriminant b2−4ac>0

so, there are two real roots.

Cannot Simplify the Radical:

x=[tex]\frac{7+-\\\sqrt{37} }{2}[/tex]

which becomes

x=6.54138

x=0.458619

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