Question

the following:
find out whether (x+6) is a roo
t of
x2+5x-6 = 0 Or not?
​

Answer 1

Answer:

Unknown Value of "x" in Quadratic Equation x2 + 5x + 6 = 0. -2 & -3 are the roots of quadratic equation x2 + 5x + 6 = 0.

Answer 2

Answer:

${x}^{2} + 5x - 6 = 0 \\ {x}^{2} - 6x + x - 6 = 0 \\ x(x - 6) + 1(x - 6) = 0 \\ (x + 1)(x - 6) = 0 \\ x + 1 = 0 \: \: \: \: \: \: \: \: \: \: \: \: \: x - 6 = 0 \\ x = - 1 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: x = 6 \\ x + 6 \: is \: not \: a \: root$