Find the product of the complex number and its conjugate. 1 + 2i

5

Step-by-step explanation:

If a complex number is defined as a+bi, then its conjugate is defined as

and the product of the complex number and its conjugate is

The given complex number is

The conjugate of given number is

The product of the complex number and its conjugate is

Therefore, the product of the complex number and its conjugate is 5.

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a

x = 2

step-by-step explanation:

if sr parallel to ba then the sides bc and ac are in proportion, that is

= ← substitute values

= ( cross- multiply )

27x = 6(4x + 1)

27x = 24x + 6 ( subtract 24x from both sides )

3x = 6 ( divide both sides by 3 )

x = 2