gamer141
gamer141 gamer141
  • 13-04-2015
  • Mathematics
Answered

1/5 (x²-2x) = -2/5 + x²

Can you solve it all? Please i need this , i'll reward you



Answer :

AyaZ
AyaZ AyaZ
  • 13-04-2015
[tex] (\frac{1}{5} ( x^{2} -2x) = \frac{-2}{5} + x^{2} )*5 \\ \\ x^{2} -2x=-2+5 x^{2} \\ 4 x^{2} +2x-2=0 \\ Because \\ a x^{2} +bx+c=0 \\ a+c=b \\ x_{1} =-1 \\ x_{2} = \frac{-c}{a} = \frac{-(-2)}{4} = \frac{1}{2} [/tex]
Answer Link

Other Questions

Which of the following states is considered part of the Corn Belt? End of exam A. Oregon B. Texas C. Iowa D. Alabama
find all real number x such that 6x-21≥3 or 14x+11≤-7
Which mountains hinder travel between Spain and France?
The price of a tent was decreased by 15% and sold for $76.49. What was the original price of the tent in dollars?
Aristotle, the ancient Greek philosopher, thought that heavy objects fall to Earth faster than lighter objects. How could Aristotle's hypothesis be supported or
Why does a CPU need Thermal Grease?
A rectangular field is 280 m by 390 m. A rectangular barn 25 m by 33 m is built in the field. How much area is left over?
which of the following is a pure substance?a. sodab.gun powderc. sugar waterd. steam
what causes a nebula to collapse?
Why do you think scientists think the first organisms did not need oxygen to survive?