Question

Me ajudem a respondef

Answer 1

$Ola'~~ \\ \\ \textcircled{a}~ \\ \\ x\²+14x+49=0 \\ (x+7).(x+7)=0 \\ \boxed{\boxed{x=-7}} \\ \\ \textcircled{b} \\ \\ 4x\²-20x+25=0 \\ (2x-5).(2x-5)=0 \\ 2x-5=0 \\ 2x=5 \\ \\ \boxed{\boxed{x= \frac{5}{2}}} \\ \\ \mathbb{iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii}\\ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~Espero~ter~ajudado!!$