195k views
0 votes
Solve by completing the square

3x^2-7x-1

User Adn
by
5.3k points

1 Answer

3 votes

Answer:


x=(7+√(61))/(6),\:x=(7-√(61))/(6)

Explanation:


a=3,\:b=-7,\:c=-1:\quad x_(1,\:2)=(-\left(-7\right)\pm √(\left(-7\right)^2-4\cdot \:3\left(-1\right)))/(2\cdot \:3)


x=(7+√(61))/(6),\:x=(7-√(61))/(6)

User Renaud Bompuis
by
5.6k points