The roots or the Zeros of <span>x^2 – 2x – 15 = 0 would be
C. x=5, -3</span>
Answer:
or 
Step-by-step explanation:
You need to complete the square before you can take the square root of both sides.

Subtract 10 from both sides.

To complete the square, you need to add the square of half of the x-term coefficient to both sides.
The x-term coefficient is 7. Half of that is 7/2. Square it to get 49/4. Now we add 49/4 to both sides of the equation.



Now we use the square root property, if
, then



or
or 
or 
Answer:
Step-by-step explanation:
7
2
Decimal Form:
3.5
Mixed Number Form:
3
12
20 more than what they played or 20 more than what they lost?
Answer:
Domain is all real numbers. Range is [36- negative infinity]