What is the discriminant d of the equation? n^2+2n−2=0

the discriminant of the given equation is, 12

Step-by-step explanation:

A quadratic equation  ....[1] then

Discriminant of the quadratic equation is given by:

where D is the discriminant of the quadratic equation

Given the equation:

On comparing with equation [1] we have;

a = 1, b = 2 and c = -2

Then using formula for discriminant, we have;

⇒

⇒

Therefore, the discriminant of the given equation is, 12

infinitely many solutions

step-by-step explanation:

we have been given the equation;

2(2x + 3) = -4 + 2(2x + 5)

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions

1) is right

step-by-step explanation: