Answer: 
Step-by-step explanation:
The given quadratic equation :_ 
To solve this , we first add 15 on the both the sides of the above equation, we get

Now, we divide both sides by 5, we get

Taking square roots on both the sides , we get

Hence, the two possible solutions = 
X = 3 Right side length!
I hope this helps. :)
Answer:
Negative
Step-by-step explanation:
The 8 positive numbers give you a positive, and a positive times negative is negative, then negative times negative is positive, and positive times negative is negative. Your final number would be negative.
Answer:
235.980931
Step-by-step explanation: