Question

Distribute and simplify these radicals. 12 x(-1+ √5)

Answer 1

Answer is B. -2√3+2√15

Answer 2

Hello there!

Here is the answer worked out for you!
12x[-1+sqrt(5)]
-12x+12xsqrt(5)

Remember that you can only add like terms so you can't add -12x to 12xsqrt(5). The radical makes it an unlike term.

I hope this helped and best wishes!