Question

ajutați mă vă rog frumos​

Answer 1

Răspuns:

7.

a)

$= \frac{13x^{2} }{y}$

b)

$=-\frac{3ab^{5} }{17} *\frac{17}{9a^{2} b^{3} }=-\frac{b^{2} }{3a}$

c)

$=-\sqrt{3} tz$

d)

$=\frac{23a^{3} b^{2} }{9} *\frac{9}{5a^{4}b } =\frac{23b}{5a} =4,6*\frac{b}{a}$

8.

a)

= 9x²y⁴

b)

= 25a⁸b⁴

c)

$=(-\frac{11tz}{5} )^{-3} =(-\frac{5}{11tz} )^{3} =-\frac{125}{1331t^{3} z^{3}}$

d)

$=\frac{1}{2a^{6} b^{4} }$

Explicație pas cu pas: