SOLUTION: Solve. Round results to the nearest thousandth. 7x^2 - 6x

SOLUTION: Solve. Round results to the nearest thousandth. 7x^2 - 6x - .4255 = 0

Question 173805This question is from textbook Introductory Algebra
: Solve. Round results to the nearest thousandth.
7x^2 - 6x - .4255 = 0 This question is from textbook Introductory Algebra

Answer by vleith(2983) (Show Source): You can put this solution on YOUR website!

Solved by pluggable solver: SOLVE quadratic equation with variable

Quadratic equation (in our case ) has the following solutons:

For these solutions to exist, the discriminant should not be a negative number.

First, we need to compute the discriminant : .

Discriminant d=47.914 is greater than zero. That means that there are two solutions: .

Quadratic expression can be factored:

Again, the answer is: 0.922999566599059, -0.0658567094562017. Here's your graph:

Rounded 0.923 and -0.066
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