akar dari √72 adalah.......

[tex] \sqrt{72} = \sqrt{36.2} =6 \sqrt{2} [/tex]

[tex] \sqrt{72}\\ =\sqrt{2 ^{3}\times3^2 }\\ =\sqrt{2^2 \times 2 \times 3^2}\\ =\sqrt{2^2}\times \sqrt{2} \times \sqrt{3^2} \\ =2\times \sqrt{2}\times3\\ =6 \sqrt{2} [/tex]