miaangluna miaangluna

01-05-2019
Mathematics

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Solve by factoring 3x^2-3x-60=0

Respuesta :

mathstudent55 mathstudent55

01-05-2019

Answer:

x = 5 or x = -4

Step-by-step explanation:

3x^2 - 3x - 60 = 0

Factor out 3 from the left side.

3(x^2 - x - 20) = 0

Divide both sides by 3.

x^2 - x - 20 = 0

Factor the trinomial.

(x - 5)(x + 4) = 0

x - 5 = 0 or x + 4 = 0

x = 5 or x = -4

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