ajutor va roggggggg

Răspuns:
5.
[tex] \sqrt{90} = \sqrt{ {3}^{2} \times 10} = 3 \sqrt{10} [/tex]
[tex] \sqrt{200} = \sqrt{2 \times {10}^{2} } = 10 \sqrt{2} [/tex]
[tex] \sqrt{300} = \sqrt{3 \times {10}^{2} } = 10 \sqrt{3} [/tex]
6.
a)
[tex]2 \sqrt{3} = \sqrt{ {2}^{2} \times 3 } = \sqrt{12} [/tex]
[tex]4 \sqrt{5} = \sqrt{ {4}^{2} \times 5 } = \sqrt{80} [/tex]
[tex]6 \sqrt{7} = \sqrt{ {6}^{2} \times 7 } = \sqrt{252} [/tex]
[tex]12 \sqrt{10} = \sqrt{ {12}^{2} \times 10 } = \sqrt{1440} [/tex]
b)
[tex]5 \sqrt{5} = \sqrt{ {5}^{2} \times 5} = \sqrt{125} [/tex]
[tex]12 \sqrt{1} = \sqrt{ {12}^{2} \times 1} = \sqrt{144} [/tex]
[tex]1450 \sqrt{0} = \sqrt{ {1450}^{2} \times 0 } = \sqrt{0} = 0[/tex]