Question

Resolva: A)√x-2=3 B)√x-1=x-1 C)√x-2=x-2 D)√x-4=x-4 E)√x-1=5-x F)√x+5=x-1 G)√7x-3=x+1

Answer 1

a)
$3 \sqrt{ \times - 2}$
b)
$\sqrt{x - x - 1}$
c)
$\sqrt{x = x}$
x=x^2=0

x×(1-×)=0

x=0
1-×=0

resposta: x1=0,×2=2

d)x1=0 x2=1
são as q eu sei