X^2 - 2x - 15 = 0
(x - 5)(x + 3) = 0
We have two factors:
(x - 5) and (x + 3)
Set each factor to 0 and solve for x.
Take it ftom here.
For your question, it would be the second one
Answer:

![\rule[225]{225}{2}](https://tex.z-dn.net/?f=%5Crule%5B225%5D%7B225%7D%7B2%7D)
Step-by-step explanation:
<h3>7.</h3>
The Commutative Property of Addition changes the order of the numbers but does not affect the sum.
<h3>8.</h3>
We will convert the values into decimals for simplicity.



Arranging from least to greatest:

<h3>9.</h3>
2 + ( -8 )
2 is on the number line.
When -8 is added to 2, the value decreases, and it moves 8 units to the left side.
The result is -6.
(image)
<h3>10.</h3>
The two subsets of real numbers are rational and irrational numbers.
is an irrational number.
<h3>11.</h3>



![\rule[225]{225}{2}](https://tex.z-dn.net/?f=%5Crule%5B225%5D%7B225%7D%7B2%7D)
When looking for volume always multiply the sides to find the answer
Answer:
750 + 750=1500
Step-by-step explanation: