jessihogan
jessihogan
13-04-2018
Mathematics
contestada
what are the solutions to 2x^2 + 7x = 4
Respuesta :
dannielle
dannielle
13-04-2018
2x^2+7x-4=0
Δ=7^2-4*2*(-4)
Δ=49+32
Δ=81
x1=(-7+V81)/4=(-7+9)/4=2/4=1/2
x2=(-7-9)/4=-16/4=-4
the solutions:
x1= 1/2
and
x2= - 4
Answer Link
VER TODAS LAS RESPUESTAS ( 86+ )
Otras preguntas
which are the two highest grossing Virginia products? A)wood B)meat C)computer processors D)coal
Hydrogen, oxygen, and chlorine are some of the ___ elements
A magnetic field is directed North and is increasing at a rate of 2.0 T/sec. A wire loop with N=10 turns, area 1.0 square centimeter, and resistance R= 1.00 ohm
Write a public static method called triangle that has one parameter, which is an int variable called rows. The return type for your method should be void. The m
A rectangle has a perimeter of 28 inches and a width of 5 inches. What is the length of the rectangle?
What happened to many girls who worked in matchstick factories?
The following sentences are about people, places, or events in Bolivia and Paraguay. For each blank, write the appropriate form of the verb ser or estar, depend
The oblique prism below has an isosceles right triangle base. An oblique right triangular prism is shown. The triangular bases have 2 sides with a length of x.
Which man offered americans a new deal and was elected president in 1932?
46. Ben learns that his discovery is really a(n).
