How do you simplify 4\sqrt{3}+2\sqrt{12}43+212?

1 Answer
May 29, 2018

4sqrt3+2sqrt12=color(blue)(8sqrt343+212=83

Explanation:

Simplify:

4sqrt3+2sqrt1243+212

We can only add or subtract numbers with radicals if the radicals are the same.

Prime factorize sqrt1212.

4sqrt3+2sqrt(2xx2xx3)43+22×2×3

Write the factorization in exponent form.

4sqrt3+2sqrt(2^2xx3)43+222×3

Apply rule: sqrt(a^2)=aa2=a

4sqrt3+2xx2sqrt343+2×23

Simplify 2xx22×2 to 44.

4sqrt3+4sqrt343+43

Simplify.

8sqrt383