Question

Determinati x∈R astfel in cat 69-5(x-2)²=24    

Answer 1

$(x-2)^2=\dfrac{69-24}{5}$

$(x-2)^2=9$

$|x-2|=3$

$x-2=\pm3$

$x-2=3\Rightarrow x_1=5$

$x-2=-3\Rightarrow x=-1$