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Radical din 162 (scoatere de sub radical)

Răspuns :

162 = 2 × 3^4


rad162 = 3^2rad2 = 9rad2


[tex] \sqrt{162} = \sqrt{2 \times 3 \times 3 \times 3 \times 3} = \sqrt{(3 \times 3) \times (3 \times 3) \times 2} = \sqrt{ {3}^{2} \times {3}^{2} \times 2 } = (3 \times 3) \sqrt{2} = 9 \sqrt{2} [/tex]