Question

Alguém mim ajuda pfv

Answer 1

Resposta:

1-1.6 2- -1 3- -1,295 4-0,6435942529

Explicação passo-a-passo:

V7x-3=1+x

3.5x-3=1+x

3.5x - x =3+1

2.5x=4

x= 4/2.5

x=1.6

Vx-3+5=X

-2x=3-5

-2x= -2

x= -2/2

x=-1

4-x=Vx+2

-x-x

2X=V2 -4

2x=1,41 - 4

2x= -2,59

x= -2,59/2

x= -1,295

$\sqrt{x + 8 = 4} - x$

Vx +x=2-2,8284271247

V2x=0,8284271247

Vx =0,8283271247/2

Vx=0,4142135624

x=0,6435942529