Question

resolva as equações a) 5x -10x =10 b) 3x- 7x= x ( 2x-4)​

Answer 1

Resposta:

Explicação passo-a-passo:

a)5x-10x=10

 -5x=10  .(-1)

  5x=-10

   x=-10/5

 x=-2

b)3x-7x=x(2x-4)

 -4x=$2x^{2}$-4x

-$2x^{2}$=4x-4x

- $2x^{2}$=0 .(-1)

 $2x^{2}$=0

 x=0

Answer 2

a)5x-10x=10
-5x=10
x=10/-5
x=-2

b) 3x-7x=x(2x-4)
-4x=2x^2-4x
2x^2=0
x^2=0
x=0