Math Flashcards
A quadratic equation
In the variable x is of the form ax2 + bx + c = 0, where a, b, and c are real numbers and a=/0. This form is said to be in standard form
The highest degree or the quadratic equation is
2
A complete quadratic equation contains
Contains both the first, and second power of thr variable.
An example of complete quadratic equation is
x2 + 4x - 5 = 0
There are equations which do not have the first power of the variable or shall we say b = 0. Thus we can easily solve the equation by
Extracting square root
The principle involved in solving quadratic equations by factoring rests on the
Zero - Product property (sometimes called as zero-factor property)
Three types of factoring in general
Common monomial factor (ab + ac = a(b+c)) Difference of two squares (a2 – b2 = (a+b)(a-b) Quadratic trinomial (ax2 + bc + c = (a1x + c1)(a2x + c2)