zachsbd808
zachsbd808 zachsbd808
  • 03-11-2017
  • Mathematics
contestada

What is the value of b2 - 4ac for the following equation?

2x2 + 3x = -1

Respuesta :

Louli
Louli Louli
  • 03-11-2017
First, we will rearrange the equation to be in the form of:
ax^2 + bx + c = 0
Doing this, the equation will become:
2x^2 + 3x + 1 = 0
Then,
a is the coefficient of x^2, therefore, a = 2
b is the coefficient of x, therefore, b = 3
c is the coefficient in the term that has no x (x^0), therefore, c = 1

Then, we will substitute in the equation to get the desired value:
b^2 - 4ac = (3)^2 - 4(2)(1) = 9 - 8 = 1
Answer Link

Otras preguntas

find the value of x when DE=6x and AB=4x+32​
What are the criteria in a rubric?
question 5 need help please​
The greenhouse effect occurs when carbon dioxide and other gases prevent heat energy from leaving the atmosphere.
A uniform ladder 15 ft long is leaning against a frictionless wall at an angle of 53 above the horizontal. the weight of the ladder is 30 pounds. a 75-lb boy c
Someone plz tell me the answer quickly!!!!
find the latetal surface area​
ANSWER ASAP PLEASE! Why were certain animals able to survive the ice age?
A bakery has fixed costs for retail space, electricity, and appliances of $15,000. The variable cost of baking a cookie is 0.25 and the variable cost of baking
this American government what is it but a tradition it has not the vitality and force of a single living man it is a sort of wooden gun to the people themselves