Question 1044885
<pre><b>

Use two principles of square roots:

1. {{{sqrt(A*B)}}}{{{""=""}}}{{{sqrt(A)*sqrt(B)}}}, if A and B are real and non-negative.

2. {{{sqrt(A^2)}}}{{{""=""}}}{{{A}}} if A is real and non-negative

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{{{2*sqrt(12)-2*sqrt(36)}}}{{{""=""}}}

{{{2*sqrt(4*3)-2*sqrt(6^2)}}}{{{""=""}}}

{{{2*sqrt(4)*sqrt(3)-2*6}}}{{{""=""}}}

{{{2*sqrt(2^2)*sqrt(3)-12}}}{{{""=""}}}

{{{2*2*sqrt(3)-12}}}{{{""=""}}}

{{{4*sqrt(3)-12}}}

Edwin</pre></b>