Unknown Value of "x" in Quadratic Equation x2 + 5x + 6 = 0
-2 & -3 are the roots of quadratic equation x2 + 5x + 6 = 0. Users may replace the input values of this equation x2 + 5x + 6 = 0 to verify the similar calculations or generate complete work with steps to find what is the unknown or root value of x.
Work with Steps for x2 + 5x + 6 = 0
The below work with steps may helpful for grade school students to understand how to find unknown or root values of x for quadratic equation x2 + 5x + 6 = 0 or to solve the worksheet problems.
step 1 Address the input parameters and values
Quadratic Equation : x2 + 5x + 6 = 0
step 2 Substitute a , b and c values in below formula
x = - b ± √b² - 4ac2a
=-(5) ± √(52 - 4 (1) (6))2(1)
=-5± √25 - 4 (1)(6)2
=-5± √25 - 242
=-5± √12
step 3 Solve the above expression for minus & plus values
x1 = -5 + √12
= -5 + 1/2
x2 = -5 - √12
= -5 - 1/2
step 4 By simplifying the above expressions for x1 & x2
x1 = -4/2
x1 = -2
x2 = -6/2
x2 = -3
x1 = -2 & x2 = -3 are the roots for equation x2 + 5x + 6 = 0
