Question

va rog,e urgent!..introduceti factorul sub radical:
a) $7a^{2} \sqrt{a}$
b) a$\sqrt{ \frac{2}{a} }$
c) (1-a)$\sqrt{ \frac{3}{a-1} }$

Answer 1

a) $\sqrt{49 a^{5} }$
b$= \sqrt{ \frac{2 a^{2} }{a} } = \sqrt{2a}$
c)$= -\sqrt{ \frac{3 (a-1)^{2} }{a-1} } = \sqrt{3(a-1)}$