Question #a50b9

1 Answer
Oct 22, 2016

? = 361?=361

Explanation:

We start by distributing the left hand side, letting ? = x?=x

12sqrt(36) + 3sqrt(36) - 8sqrt(36) - 2sqrt(36) = sqrt(x) + 111236+336836236=x+11

12(6) + 3(6) - 8(6) - 2(6) = sqrt(x) + 1112(6)+3(6)8(6)2(6)=x+11

30 = sqrt(x) + 1130=x+11

30 - 11 =sqrt(x)3011=x

19 = sqrt(x)19=x

Now, square both sides to get rid of the square root.

(sqrt(x))^2 = 19^2(x)2=192

x = 361x=361

Hopefully this helps!