Find the value of x for which x²-3x - 10 /

x² + 12x + 36

is equal to zero, undefined

x = - 6 twice

Step-by-step explanation:

x^2-3x-10/x^2+12x+36

By using undefined fraction we only take the denominator and equate it to 0

x^2+12x+36=0

x^2+6x+6x+36=0

(x^2+6x) + (6x+36) = 0

x (x+6) + 6 (x+6) = 0

(x+6) (x+6) = 0

x+6=0 or x+6=0

x = - 6 or x = - 6

therefore x = - 6 twice