Mistake

Nicol needs to correct errors when calculating in school. Instead of adding the number 20, she subtracts it.

What is the difference between the result and the correct result?

Correct answer:

x =  -40

Step-by-step explanation:

a=n+20 b=n20  x=ba=(n20)(n+20) x=220=40



Did you find an error or inaccuracy? Feel free to write us. Thank you!







Tips for related online calculators
Do you have a linear equation or system of equations and are looking for its solution? Or do you have a quadratic equation?

You need to know the following knowledge to solve this word math problem:

Related math problems and questions: