Evaluate (2-5i)(p+q)(i) when p=2 and q=5i.

Step-by-step explanation:

We have the product of 2 complex numbers

We know that:

Then we substitute these values in the expression

The product of a complex number by its conjugate is always equal to:

Then

Remember that:

So

Finally

you can't solve x because it is 2 linear equation and you only have one equation

look at the picture.

y-intercept for the function on a picture is 4 → point (0, 4).

y-intercept for the function

is for x = 0. substitute:

y-intercept is 8 → point (0, 8).