Answer:
(2 (y - 2 x^2 + 5))
Explanation:
Simplify the following:
2 y - x^2 - 3 x^2 + 10
Grouping like terms, 2 y - x^2 - 3 x^2 + 10 = 2 y + (-x^2 - 3 x^2) + 10:
2 y + (-x^2 - 3 x^2) + 10
-x^2 - 3 x^2 = -4 x^2:
2 y + -4 x^2 + 10
Factor 2 out of 2 y - 4 x^2 + 10:
Answer: (2 (y - 2 x^2 + 5))