[tex] 4x^{3} [/tex] - [tex] 3x^{2} [/tex] + x + [tex] 3x^{3} [/tex]
First, gather the like terms. / Your problem should look like: ([tex] 4x^{3} [/tex] + [tex]3x^{3} [/tex] ) - [tex] 3x^{2} [/tex] + x
Second, simplify. / Your problem should look like: [tex] 7x^{3} [/tex] - [tex]3x^{2} [/tex] + x
Answer: [tex] 7x^{3} [/tex] - [tex] 3x^{2} [/tex] + x
