Question #a50b9

1 Answer
Oct 22, 2016

Answer:

#? = 361#

Explanation:

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

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

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

#30 = sqrt(x) + 11#

#30 - 11 =sqrt(x)#

#19 = sqrt(x)#

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

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

#x = 361#

Hopefully this helps!