The expression ( x^2 - 4x - 12 ) is a quadratic equation. It can be factored to find its roots or solved using the quadratic formula. Factoring gives ( (x - 6)(x + 2) ), indicating the roots are ( x = 6 ) and ( x = -2 ). The graph of this quadratic opens upwards and has a vertex, which represents its minimum point.
x2 - 4x - 21 = (x-7)(x+3)
7
4x + 20
x(4x-2)
I assume you wanted this factored: (x+6)(x-2)
It is a quadratic expression
x2-4x-165 = (x-15)(x+11) when factored
4(x - 1)(x + 1)
x^2-4x/x^2-6x+8 = x(x-4)/(x-2)(x-4) = x/(x-2)
x - 2
Dividend: x3+4x2-9x-36 Divisor: x+3 Quotient: x2+x-12
4(x^2 + x + 3)