How do you simplify sqrt18-2sqrt2? Algebra Radicals and Geometry Connections Addition and Subtraction of Radicals 1 Answer jk.13 Mar 25, 2018 sqrt2 Explanation: sqrt(9*2)-2sqrt2 3sqrt2-2sqrt2 1sqrt2 or just sqrt2 Answer link Related questions How do you add and subtract radicals? How is a radical considered a "like term"? How do you simplify 4\sqrt{3}+2\sqrt{12}? How do you add 3""^3sqrt(2)+5""^3sqrt(16)? How do you subtract \sqrt{8x^3}-4x\sqrt{98x}? How do you combine the radical \sqrt{6}-\sqrt{27}+2\sqrt{54}+3\sqrt{48}? How do you simplify ""^3sqrt{\frac{16x^5}{135y^4}}? What is sqrt(50)-sqrt(18)? How do you add 3sqrt2+4sqrt2? What is the square root of 50 + the square root of 8? See all questions in Addition and Subtraction of Radicals Impact of this question 1509 views around the world You can reuse this answer Creative Commons License