## College Algebra (11th Edition)

3$x^{4}$ - 4$x^{2}$ + 5
1. Use the distributive property to distribute the negative sign. $x^{4}$ - 3$x^{2}$ + 2 + 2$x^{4}$ - $x^{2}$ + 3 2. Group like terms together. $x^{4}$ + 2$x^{4}$ - 3$x^{2}$ - $x^{2}$ + 2 + 3 3. Add like terms. 3$x^{4}$ - 4$x^{2}$ + 5