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

Answer Link

Otras preguntas

Read the following passage and answer the question. Dawn with her rosy-red fingers might have shone Upon their tears, if with her glinting eyes... Which literar
Which best describes the exocrine glands? Exocrine glands function only for digestion and temperature regulation. Exocrine glands can sometimes release substanc
Compare The ruler you made to an inch ruler. Describe how they are alike and how are diferente
_____ evolved during the jurassic or cretaceous periods
Which of the following is NOT true about storage body fat? A. Storage body fat acts as an insulator to the body. B. Storage body fat helps increase the effects
Wich is a scalar quantity (1)velocity (2)speed (3)acceleration (4) displacement
in which tissue system would you find root hairs and the epidermis?
Which sentence correctly uses the word "so"? The crowd on the dance floor went wild, so did the band. Emily said, "This music is really wicked, so let's dance,
Air pollution ____ a) can create acid rain b) can make respiratory or heart conditions better c) can fertilize vegetation d) can help the ozone layer
what is the most important reason to continue efforts to preserve coral reefs?