Simplify 4y^2-3y+9y^4+7y-5y^2

$4 y^{2} - 3 y + 9 y^{4} + 7 y - 5 y^{2}$

Step 1

Subtract $5 y^{2}$ from $4 y^{2}$ .

$- y^{2} - 3 y + 9 y^{4} + 7 y$

Step 2

Add $- 3 y$ and $7 y$ .

$- y^{2} + 9 y^{4} + 4 y$

Step 3

Reorder $- y^{2}$ and $9 y^{4}$ .

$9 y^{4} - y^{2} + 4 y$