Q. Solve the equation. Check your solutions. Write your solutions from least to greatest, separated by a comma, if necessary.−x2−12=−8xx=□,□
Rewrite Equation: Rewrite the equation in standard quadratic form by adding 8x to both sides.Equation: −x2+8x−12=0
Use Quadratic Formula: Since the quadratic equation is not easily factorable, we will use the quadratic formula to find the solutions for x. The quadratic formula is x=2a−b±b2−4ac, where a=−1, b=8, and c=−12.
Calculate Discriminant: Calculate the discriminant b2−4ac to determine the nature of the roots.Discriminant: 82−4(−1)(−12)=64−48=16
Apply Quadratic Formula: Since the discriminant is positive, we have two real and distinct solutions. Now, apply the quadratic formula.x=2×−1−8±16
Simplify Solutions: Simplify the solutions. x=−2−8±4
Solve for x Values: Solve for both possible values of x.First solution: x=(−8+4)/−2=−4/−2=2Second solution: x=(−8−4)/−2=−12/−2=6
Final Solutions: Write the solutions in ascending order, separated by a comma.Final solutions: 2,6