Question

1.DETERMINATI x apartine R astfel incat 69-5(x-2)la 2=24

Answer 1

$69-5(x-2)^2=24$
$5(x-2)^2=69-24$
$5(x-2)^2=45$
$(x-2)^2=9$
$x-2=\pm3$
$x-2=3\Rightarrow x_1=5$
$x-2=-3\Rightarrow x_2=-1$