lexinerd lexinerd
  • 22-06-2014
  • Mathematics
contestada

Solve for x. 10x^2=29x-21 does anyone know this

Respuesta :

konrad509
konrad509 konrad509
  • 22-06-2014
[tex] 10x^2=29x-21 \\ 10x^2-29x+21=0\\ \Delta=(-29)^2-4\cdot10\cdot21=841-840=1\\ \sqrt{\Delta}=\sqrt1=1\\ x_1=\frac{-(-29)-1}{2\cdot10}=\frac{28}{20}=\frac{7}{5}\\ x_2=\frac{-(-29)+1}{2\cdot10}=\frac{30}{20}=\frac{3}{2}\\[/tex]
Answer Link

Otras preguntas

Which is another name for CD
How many moles are in 216.6 g of methanol (CH3OH)
Fort Sumter was site of ?
what is the frequency of a wave that has a wavelength of 0.78m and a speed of 343 m/s?
Use algebra to convert the recurring decimal 0.38 to a fraction in its simplest form. (2 marks​
Mot de même famille que froidement
The drama club spent a total of 40 hours practicing for the school play. 10% of the time was spent doing dress rehearsals. How many hours did the drama club spe
Given that CB=4x-3 and ZX=2x+15, for which value of x are the triangles congruent? PLSSS HELP!!!
Pls help I’ll brainlest asap
What was the cause of english revolution???