answersLogoWhite

0


Best Answer

The discriminant is 16

User Avatar

Wiki User

12y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What is the discriminant of x squared equals 4?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

What is the discriminant of x squared plus 6 x plus 5 equals 0?

4


What is the discriminant in x squared equals 11x?

The discriminant, for what it is worth in an example such as this, is 11.


Why is it that the parabolas of y equals x squared -4x plus 8 and y equals 8x -14 - x squared can never intersect with each other giving reasons why not?

Because when collated together the discriminant of b2-4ac = -32 i.e. 144-(4*2*22) = -32 In order for the parabolas to make contact with each other the discriminant must equal zero or be above zero.


How much greater is 4 squared than 3 squared?

The greatness of 4 squared and 3 squared is expressed by the equation: 16 - 9 which equals 7.3 squared equals 3 x 3 = 94 squared equals 4 x 4 = 1616 - 9 = 7


What are the value of 4 squared?

4 squared is 4 x 4 which equals 16.


What is the answer to -x equals 4?

-(2)Squared = 4


How do you prove that the line y equals x-4 is tangent to the curve of x squared plus y squared equals 8?

equation 1: y = x-4 => y2 = x2-8x+16 when both sides are squared equation 2: x2+y2 = 8 Substitute equation 1 into equation 2: x2+x2-8x+16 = 8 => 2x2-8x+8 = 0 If the discriminant of the above quadratic equation is zero then this is proof that the line is tangent to the curve: The discriminant: b2-4ac = (-8)2-4*2*8 = 0 Therefore the discriminant is equal to zero thus proving that the line is tangent to the curve.


How do you find 9x squared plus four x plus 2 equals zero?

It has no solutions because the discriminant is less than zero.


What is the answer to x squared equals 16?

4


X squared plus y squared plus z if x equals 7 y equals 6 and z equals 4?

89


What is the discriminant of x2 plus 6-16 equals 0?

The discriminant of x^2 + 6 - 16 = discriminant of x^2 - 10 is 40.


What is the relationship between the line y equals x plus 4 and the circle x squared plus y squared -8x plus 4y equals 30 on the Cartesian plane explaining how and why?

Equations: y = x+4 and x^2 +y^2 -8x +4y = 30 The given equations will finally form a quadratic equation such as: x^2 +2x +1 = 0 Discriminant: 2^2 -4*(1*1) = 0 meaning there are equal roots Because the discriminant has equal roots the line is a tangent to the circle In fact the line makes contact with the circle at (-1, 3) on the Cartesian plane