keearacharnae1 keearacharnae1

22-08-2017
Mathematics

contestada

Evaluate the expression described below if the number is 4. The difference between a number squared and the number.

Respuesta :

22-08-2017

Hello,

[tex]x^2-x=4\\ x^2-x-4=0\\ \Delta=1^2-4*(-4)=17\\ x= \dfrac{1+ \sqrt{17} }{2} \\ or\\ x= \dfrac{1- \sqrt{17} }{2} \\ [/tex]

Answer Link

Otras preguntas

I need help. Thanks!

(-6.2).(2,-6) Finding the slope with two points

Reformulez de façon différente la question suivante: "Ils discutent de quoi?"

what influences of the 13 original colonies remain today in terms of echomy gender roles and race?cite 3 examples evidence plus analysis equal a complete though

Gross Company sold $100,000 of long-term bonds in the open market for $108,000. The entry to record the transaction would be:DR Cash 100,000 DR Premium on Bonds

This disorder is the only anxiety disorder that is directly linked to a specific cause. It results from a traumatic or horrifying experience: A.Panic attack B.P

what are the Benefits of english

Create a function copy() that reads one file line by line and copies each line to another file. You should use try-except statements and use either open and clo

F(x) =5x^2-20x+3 how to find minimum

What does the motif of a loud sound represent in the story? the passage between the North and the South the passage between dreams and reality the contrast betw