Question

21x²+3x=0
Con factorizacion ​

Answer 1

Respuesta:

3×(7×+2)=0

×(7×+1)=0

×=0

7×+1=0

×=0

×=1

__

7

solusion

×1=1 x2=0

__

7

Answer 2

21x² + 3x = 0

3x(7x + 1) = 0

3x = 0          7x + 1 = 0

x = 0/3          7x = -1

x = 0                x = -1/7
CS = (-1/7 ; 0)

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