12 { \left( \sqrt{ 2 } \right) }^{ 2 } -6 { \left( \sqrt{ { 2 }^{ } } \right) }^{ 2 }
Evaluate
12
Factor
2^{2}\times 3
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12\times 2-6\left(\sqrt{2^{1}}\right)^{2}
The square of \sqrt{2} is 2.
24-6\left(\sqrt{2^{1}}\right)^{2}
Multiply 12 and 2 to get 24.
24-6\left(\sqrt{2}\right)^{2}
Calculate 2 to the power of 1 and get 2.
24-6\times 2
The square of \sqrt{2} is 2.
24-12
Multiply 6 and 2 to get 12.
12
Subtract 12 from 24 to get 12.
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