Question

scoateti factori de sub radical ​

Answer 1

Răspuns:

a)

$=\sqrt{4*5+5^{2} *7} =\sqrt{5(4+5*7)} =\sqrt{5*39} =\sqrt{5*3*13}$

b)

$=\sqrt{3^{3}*4-3^{3} +3^{2}*3 )} =\sqrt{3^{2}(3*4-3+3)} =3\sqrt{4*3} =3*2\sqrt{3} =6\sqrt{3}$

c)

$=\sqrt{\sqrt{25*9}+6*6+5^{3} } =\sqrt{5*3+36+125} =\sqrt{176} =\sqrt{4*4*11} =4\sqrt{11}$

Explicație pas cu pas: