Question

Resolva as equações
A- 2x-8=10
B- 3x-5=X+9
C- X2-13x+30=0
D- x2-5x+6=0
Me Ajudem!! ​

Answer 1

Resposta:

a-)10+8=2×

18=2×

x=18÷2

x=9

b-)3×-x=9+5

2x=14

x=7

Answer 2

Resposta:

A-2x-8=10

2x=10+8

2x=18

x=18/2

x=9

B-3x-5=X+9

3x+x=9+5

4x=14

x=14/4

x=3,5

C-x2-13x+30=0

x2-13x=0-30

11x=30

x=11/30

x=0,36

D-x2-5x+6=0

x2-5x=0-6

-5x=6

x=5/6

x=0,83