Question

Escreva as equações na forma geral e resolva.

Answer 1

a)x^(2)+3=4x

x^(2)-4x=-3

2x-4x=-3

-2x=-3

x=-2/-3

x=0,66666...

b)-20=-x-x^(2)

-20=-x-2x

(-20=-x).(-1)

x=20

c)13-2x-15x^(2)=0

-2x-15x^(2)=0-13

-2x-225x=-13

223x=-13

x=223/-13

x=-17,15384...

d)4x^(2)+7x+3=2x^(2)+2x

16x+7x-4x=-3

19x=-3

x=19/-3

x=-6,3333...

e)x(x-2)=2(x+6)

2x-2x=2x+12

-2x=12

x=-6

f)x(2x-1)+6=4(x+1)

2x-x+6=4x-x

-2x=-6

x=0,333...

g)(x-1)(x-2)=6

2x+2=6

2x=6-2

x=4

h)(2x-3)(x-8)=34

3x+24=34

3x=34-24

x=3/10

x=0,3

espero ter ajudado

bons estudos