How do you add 3sqrt2+4sqrt2? Algebra Radicals and Geometry Connections Addition and Subtraction of Radicals 1 Answer GiĆ³ Mar 24, 2015 You consider sqrt(2) as a fixed quantity that you do not change and simply add the multiplier: 3sqrt(2)+4sqrt(2)=(3+4)sqrt(2)=7sqrt(2) 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)? What is the square root of 50 + the square root of 8? What is sqrt(8)+sqrt(18)-sqrt(32)? See all questions in Addition and Subtraction of Radicals Impact of this question 9543 views around the world You can reuse this answer Creative Commons License