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scoateți factori de sub radical​

Scoateți Factori De Sub Radical class=

Răspuns :

Răspuns:

[tex] \sqrt{125} = \sqrt{ {5}^{2} \times 5} = 5 \sqrt{5} [/tex]

[tex] \sqrt{162} = \sqrt{2 \times 81} = 9 \sqrt{2} [/tex]

[tex] \sqrt{180} = \sqrt{5 \times 36} = 6 \sqrt{5} [/tex]

[tex] - 2 \sqrt{192} = - 2 \sqrt{4 \times 16 \times 3} = - 2 \times 2 \times 4 \sqrt{3} = - 16 \sqrt{3} [/tex]

[tex]5 \sqrt{200} = 5 \sqrt{2 \times 100} = 5 \times 10 \sqrt{2} = 50 \sqrt{2} [/tex]

[tex] - \sqrt{250} = - \sqrt{25 \times 10} = - 5 \sqrt{10} [/tex]

[tex]2 \sqrt{300} = 2 \sqrt{3 \times 100} = 2 \times 10 \sqrt{3} = 20 \sqrt{3} [/tex]

[tex] \sqrt{2205} = \sqrt{5 \times 441} = 21 \sqrt{5} [/tex]

[tex] \sqrt{2048} = \sqrt{ {2}^{2} \times 2 \times {16}^{2} } = 2 \times 16 \sqrt{2} = 32 \sqrt{2} [/tex]

[tex] \sqrt{12800} = \sqrt{2 \times 64 \times 100} = 8 \times 10 \sqrt{2} = 80 \sqrt{2} [/tex]

Răspuns:

Explicație pas cu pas:

a) 125 = 5^3

√125 = √5^3 = 5√5

b) 162 = 2*81 = 2*3^4

√162 = 3^2√2 = 9√2

c) 180 = 2^2*3^2*5

√180 = 2*3√5 = 6√5

d) 192 = 3*64 = 3*2^6

-2√192 = -2*2^3√3 = -16√3

e) 200 = 2*10^2

5√200 = 5*10√2 = 50√2

f) 250 = 2*5^3

-√250 = -5√2*5 = -5√10

g) 300 = 3*10^2

2√300 = 2*10√3 = 20√3

h) 2205 = 5*441 = 5*21^2

√2205 = 21√5

i) 2048 = 2^11

√2048 = √2^11 = 2^5√2 = 32√2

j) 12800 = 2^7*10^2

√12800 = 2^3*10√2 = 80√2