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Socoate factorii de sub radical
a)√72 b)√48 c)√75


Răspuns :

Răspuns:

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

[tex] \sqrt{48} = \sqrt{ {2}^{4} \times 3} = {2}^{2} \sqrt{3} = 4 \sqrt{3} [/tex]

[tex] \sqrt{75} = \sqrt{ {5}^{2} \times 3 } = 5 \sqrt{3} [/tex]

a) √72=√(6²×2)=6√2

b) √48=√(4²×3)=4√3

c) √75=√(5²×3)=5√3