lexinerd
lexinerd
22-06-2014
Mathematics
contestada
Solve for x. 10x^2=29x-21 does anyone know this
Respuesta :
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
VER TODAS LAS RESPUESTAS ( 72+ )
Otras preguntas
Which other member of the Triple Alliance first supported Austria-Hungary’s invasion of Serbia?
Photo de Anthony Zeidan 9ans au Liban
What major Allied country refused to join the League of Nations? Great Britain Germany Japan United States
Jack has been very unreliable making loan payments in the past. He has been late on many payments, and completely missed several others. He can expect to now ha
Why do we know so little about the dark ages?
The decision in Marbury v. Madison (1803) was significant because it established that the supreme court?
Why are conflicts of interests a problem in business?
what percent is $10,000 out of a 120.000
How did Western European government change as a result of the fall of Rome? A. Rome’s eastern and western governments were replaced by the Islamic Empire. B. Ro
which is a physical property of a gas?
