Answer is:9x^2-12y^2-11x in other words D
Explanation: find all the common variables and combine. In this case since your adding adding you would add 8x^1 and x^2 to get 9x^ then add -9y^2 and -3y^2 to get -12y^2. And so on to get the rest of the problem. One tip to help make this simpler is circle one type of variable like circling all the x^2, boxing all the y^2, and underlining all the x. Hope this helps
whole number are positive integers.
(2.7, 2.3)
(2, 1.7)
(1.7, 1.3)
again may be wrong
Answer:
Could you ask yoir teacher for help next class period by any chance?