How do you subtract #\sqrt{8x^3}-4x\sqrt{98x}#? Algebra Radicals and Geometry Connections Addition and Subtraction of Radicals 1 Answer José F. Mar 13, 2018 #sqrt(8x^3)−4xsqrt(98x)# Symplify the expreessions-: #sqrt(2x(2x)^2)-4xsqrt(2x7^2# Applying the rule #sqrt(a^2)=a#: #2xsqrt(2x)-7xx4xsqrt(2x)# #(2x-28x)sqrt(2x)# #-26xsqrt(2x)# 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 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? What is #sqrt(8)+sqrt(18)-sqrt(32)#? See all questions in Addition and Subtraction of Radicals Impact of this question 8448 views around the world You can reuse this answer Creative Commons License