What are the solutions of x^2-2x+5=0

The solution of are 1 + 2i and 1 – 2i

Solution:

Given, equation is

We have to find the roots of the given quadratic equation

Now, let us use the quadratic formula

 --- (1)

Let us determine the nature of roots:

Here in a = 1 ; b = -2 ; c = 5

Since , the roots obtained will be complex conjugates.

Now plug in values in eqn 1, we get,

On solving we get,

we know that square root of -1 is "i" which is a complex number

Hence, the roots of the given quadratic equation are 1 + 2i and 1 – 2i

actually your concept is wrong

step-by-step explanation:

150% of x =300

150x=300×100

x=(300×100)÷150

x=200

for this case we have that by definition, the surface area of a cylinder is given by:

where:

r: it is the radius of the cylinder

h: it is the height of the cylinder

we can also rewrite it as:

where:

la: it's the lateral area

ba: area of the base

option a