Practice problem
Simplify as much as possible: 6x2+4x2−x2\sqrt{6x^2+4x^2-x^2}6x2+4x2−x2
11x2\sqrt{11x^2}11x2
9x2\sqrt{9x^2}9x2
3x3x3x
6x2+4x2−x2\sqrt{6x^2+4x^2-x^2}6x2+4x2−x2
Type a concept, like “slope” or “photosynthesis”.