.
+ = 8 ====> multiply both sides by x ====>
= 8x ====> collect x-terms on the left side. Move the constant term to the right side ====>
= -1 ====> add 16 to both sides ====>
= -1 + 16 ====> complete the square on the left side ====>
= 15 ====> take the saure root from both sides ====>
x - 4 = +/- .
Answer. There are two solutions: and .
Solved.
I applied the completing the square method to solve the quadratic equation.
To learn more about this method, see the leson
- HOW TO solve quadratic equation by completing the square - Learning by examples
in this site.