Question

raiz quadrada de x-1=√x+5

Answer 1

x²+5x+6x=0
a)1 b)5 c)6
∆=5²-4.1.6
∆=25-24
∆=1
x=b±√∆
x=5±√1
x=5±1
x'= 5+1=6/2= 3
x"=5-1=4/2=2
s={3,2}

Answer 2

s={32} a raiz quadrada de 2 e 4