Question

ME AJUDEM PFV
Resolva as equações:
A)x+3=15
B)3-1=16
C)4x-4=20
D)-3x+4=30
E)2x²+x-3=0
F)-3x²+18x-15=0
G)3x²-x-1=0
H)-2x²+3x+5=0
I)3x-2x-2=0
J)3x²+2x-1=0​

Answer 1

Explicação passo-a-passo:

A)x+3=15

x=15-3

x=12

B)3-1=16

2=16 /falso

C)4x-4=20

4x=20+4

4x=24

x=6

D)-3x+4=30

-3x=30-4

-3x=26

x=-26/3

E)2x²+x-3=0

X1= - 3/2, X2=1