Practice problem
Simplify the following expression: 1x×(3x2+x)\frac{1}{x}\times(3x^{2}+x)x1×(3x2+x)
3x3+x23x^{3}+x^{2}3x3+x2
4x4x4x
3x+13x+13x+1
3x+x23x+x^{2}3x+x2
Type a concept, like “slope” or “photosynthesis”.