Leyla /ley-la/ [2 sylls.] as a name for girls. Leyla's name origin is Arabic, and the meaning of Leyla is night beauty.
FYI: Different textbooks have different interpretations of the reference standard form of a quadratic function. Some say f (x) = ax2 + bx + c is standard form, while others say that f (x) = a(x - h)2 + k is standard form.
quadratic equation, an equation involving the square of the unknown quantity. An advantage gained was that every quadratic equation, and not some quadratics only, could be spoken of as having two roots. The ordinary schoolboy would correctly treat this as a quadratic equation.