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