What is the missing constant term in the perfect square that starts with x^2 -20x

An equation with missing terms will have some of its terms removed.

The missing term that makes a perfect square is 100

The following step will calculate the missing term.

Represent the coefficient of x with k.

So, we have:

Divide both sides by 2

Square both sides

This implies that, the missing term is 100

So, the complete equation is:

Read more about perfect squares at:

link

Missing constant: 100

Step-by-step explanation:

perfect square  (a - b)^2 = a^2 - 2ab + b^2

In this case

20x = 2 * x * 10

and

10^2 = 100

so

(x - 10)^2 = x^2 - 20x + 100

$649.60

step-by-step explanation: