3x^2 -4x-5=0

Question

Please Solve the equation using the quadratic formula. 

Thank you.. 

Answer 1

As an equation this becomes y  = 3x² - 4x - 5

for the quadratic equation y = ax² + bx + c : a=3, b=-4, c=-5

 

The solution can be seen : http://hwmath.net/solutions/quad_3-4-5.jpg