agfvHazha agfvHazha
  • 22-03-2018
  • Mathematics
contestada


Write the quadratic equation in standard form. What is the value of b 2 - 4ac?

1 = 2x 2 + 7x

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 25-03-2018
Subtracting 1 (and using appropriate math symbols), the standard form of the equation is
  2x^2 +7x -1 = 0

You have
  a = 2
  b = 7
  c = -1
so the discriminant b^2 -4ac is
  7^2 -4(2)(-1) = 49 +8 = 57
Answer Link

Otras preguntas

the interaction between mosquitoes and human beings is called ?
What details from the may 15th entry prove that Charlie's intelligence is growing and increasing daily ?
which two numbers multiply to give you 100 and add to give you 10
the interaction between mosquitoes and human beings is called ?
which two numbers multiply to give you 100 and add to give you 10
how do you write a good essay?
A water molecule gains enough energy to enter the gas phase is chemical or physical?why?
Iron is a solid, grey metal. Oxygen is a colorless gas. When iron and oxygen chemically combine , rust is made. Rust has a reddish brown color. Why does rust di
how do you do scientific notation? what is 1.20 x 10 to the 3rd power
Can there be more than one point of intersection between the graphs of two linear equations?