What is the quadratic formula for x^2-7x-6=0?

1 Answer
May 16, 2018

x=7.53 and x=-0.53

Explanation:

The quadratic formula is:

x=(-b^+-sqrt(b^2-4ac))/(2a)

The coefficient for a=1, b=-7 and c=-6. Substitute these values in to the quadratic formula:

x=(-(-7)+sqrt((-7)^2-4*1*(-4)))/(2*1)
x=(-(-7)-sqrt((-7)^2-4*1*(-4)))/(2*1)

Solutions:

x=7.53
x=-0.53