There are many ways to do this. Such ways are using the quadratic formula, completing the square, etc. We have We can add 46 to both sides so the -21 becomes a +25. by doing that, we get This can be wrote as We solve the square root and get (The +- is a plus minus sign.) Subtract five on both sides to get The answer is C.
There are many ways to do this. Such ways are using the quadratic formula, completing the square, etc.
We have We can add 46 to both sides so the -21 becomes a +25. by doing that, we get This can be wrote as We solve the square root and get (The +- is a plus minus sign.) Subtract five on both sides to get