Without an equality sign the given expression is not an equation and so therefore finding the value of x is not possible.
Chat with our AI personalities
X is called an unknown factor. It is a factor of the expression 12x + 1, but it cannot be calculated because the value of the expression has not been provided.
I would do this. Multiply through by -1 -1 ( -X^2 +12X +28 ) = X^2 -12X -28 (X+2)(X-14)
It is x = +/- 2 depending on whether the second term in the equation is -12x or +12x.
x + 12x + 20 = (x + 10)(x + 2)
Equate it to zero (0) , and you have a quadratic equation that can be factotred. Hence x^2 + 12x + 36 = 0 (x + 6)(x + 6) = 0 Hence x = -6
x2 + 12x + 32 = (x + 8)(x + 4)