Question

Determinati valorile necunoscute pentru valoarea fiecarui raport este zero ​

Answer 1

a) $\frac{b+5}{3} =0/*3\\=> b+5=0 => b=-5$

b) $\frac{x(x+3)}{x-1} =0/* (x-1)\\x( x+3)=0 => x_{1} =0, x_{2} =-3$

c) $\frac{(n-1)(2n+8)}{n(n+3)} =0/* n(n+3)\\=> (n-1)(2n+8)=0\\=> n_{1} -1=0 => n_{1}=1 \\=> 2n_{2} +8=0 => 2n_{2} =-8 => n_{2} =-4$

Answer 2

$sper \: sa \: fie \: corect$