Answer
11y$^2$-4y-4
Work Step by Step
Distribute the negative sign to the parentheses and then combine like terms to simplify.
(5y$^2$-y-8)-(-6y$^2$+3y-4)
5y$^2$-y-8+6y$^2$-3y+4
(5y$^2$+6y$^2$)+(-y-3y)+(-8+4)
11y$^2$-4y-4
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