Factoring trinomials, was known as quadratic equations, are important sectors in learning mathematics. The quadratic equation is a polynomial equation of order two. The general form of a quadratic equation is in the picture below. Attached figure 7.1 Where a is the coefficient for squared, b is for the linear
According to David Glover (2006), adding and subtracting integers is a method used to calculate or subtract a total of two or more numbers. It is one of the most important basic arithmetic operations. The addition operation is denoted by a plus sign "+" and subtraction with the symbol "-".