Answer
2$y^{2}$ - 54y + 18
Work Step by Step
6($y^{2}$ - 7y - 3) - 4($y^{2}$ + 3y - 9) =
Use the distributive property to remove round brackets.
6$y^{2}$ - 42y - 18 - 4$y^{2}$ - 12y + 36
Group similar terms.
(6$y^{2}$ - 4$y^{2}$) + (-42y - 12y) + (-18 + 36) =
2$y^{2}$ - 54y + 18