Try factoring out a 2x from the first 3 terms in the question, like so:

Now, you can factor the middle quadratic equation and you will have 3 factors plus the constant in the end (the +9). Hope this helps!
(10,6) Down ten and over 6.
Answer:
70th term is 753
Step-by-step explanation:
a70= ?
n= 70 (nth term, term to find)
a1= -6 (first term)
d= 11 (common difference)
a70= a1 + (n - 1)d
a70= -6 + 69(11)
a70= -6 + 759
a70= 753
I think the equation would be<span> x^2 + y^2 + Dx + Ey + F = <span>0</span></span>
I think the answer will be 2.5