R1a1pencervazMelian
R1a1pencervazMelian R1a1pencervazMelian
  • 11-06-2016
  • Mathematics
contestada

4x^2-x-3=0 solve by completing the square x= ??

Respuesta :

caylus
caylus caylus
  • 11-06-2016
Hello,

4x²-x-3=0
==>(2x)²-2*1/2*x+1/4-3-1/4=0
==>(2x-1/2)²-13/4=0
==>(4x-1)²-13=0
==>(4x-1-√13)(4x-1+√13)=0
==> x=(1+√13)/4 or x=(1-√13)/4



Answer Link

Otras preguntas

Calcium carbide (CaC2) reacts with water to form calcium hydroxide (Ca(OH)2) and acetylene gas (C₂H2) according to the reaction below. CaC₂ + 2H₂O → C₂H₂ + Ca(
this mountain region runs through northern iran and turkmenistan
The manager at a health foods store is mixing a 75-liter batch of his superfruit juice cocktail. The cocktail, which costs $34.05 per liter to make, combines mi
A catapult is used to project a stone of mass 50g. If the rubber has an elastic constant 200Newton per meter and was stretch 5cm. What speed can it give to the
is iceland or ireland warmer
Convertir 150cm a Km
What also affects spatial resolution or recorded detail? 1) Exposure 2) Contrast 3) Brightness 4) Magnification
A package of 24 water bottles is on sale for $6. How much does each water bottle cost?
What we’re possible reasons for George to kill lennie in of mice and men
Some historians have claimed that by allowing Anglo immigration into Texas, the Mexican government ultimately lost the territory. Support or refute this claim w