Respuesta :

mathstudent55

Answer:

3x^2 + 50x - 70 = 0

b = 50

Step-by-step explanation:

0.3x^2 + 5x - 7 = 0

Multiply both sides by 10 to get rid of the decimal coefficient.

3x^2 + 50x - 70 = 0

b = 50

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