Answer:
C: isolate the x squared by using inverse operations
Step-by-step explanation:
This method of solving quadratic equation is used when there is only x² term and no x term. Thus;
For example, we have a quadratic equation;
x² - 1 = 80
To solve this by square root method, the first step we have to take is to isolate the x² term by inverse operation which is by addition of 1 to both sides to get rid of the -1 on the left side so that x² can be isolated.
So close! But instead of adding the multiplication sign after the number you need to add them before. Good job though! :)
Answer:
A is the answer.
Step-by-step explanation:
C=2πr
/2π /2π
C/2π=r
