Final Answer
Step-by-step Solution
Problem to solve:
Specify the solving method
For a simpler handling of the equation, change the sign of all terms, multiplying the entire whole by $-1$
Learn how to solve quadratic equations problems step by step online.
$3x^2-24x+42=0$
Learn how to solve quadratic equations problems step by step online. Solve the quadratic equation -3x^2+24x-42=0. For a simpler handling of the equation, change the sign of all terms, multiplying the entire whole by -1. To find the roots of a polynomial of the form ax^2+bx+c we use the quadratic formula, where in this case a=3, b=-24 and c=42. Then substitute the values of the coefficients of the equation in the quadratic formula:<ul><li>\displaystyle x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}</li></ul>. To obtain the two solutions, divide the equation in two equations, one when \pm is positive (+), and another when \pm is negative (-). Subtract the values 24 and -6\sqrt{2}.