Quadratic Formula Quadratic Formula A Quadratic Equation is a univariate polynomial equation of the second degree. A general quadratic equation can be written in the form
Ax2 + bx + c = 0 where x represents a variable or an unknown, and a, b, and c are constants with a ≠0. (If a = 0, the equation is a linear equation. The constants a, b, and c are called respectively, the quadratic coefficient, the linear coefficient and the constant term or free term. The term "quadratic" comes from quadratus, which is the Latin word for "square". Quadratic equations can be solved by factoring, completing the square, graphing, Newton's method, and using the quadratic formula. A linear equation is a very interesting and important part of the algebra. It is essentially an algebraic equation which is consisting of a term that can be a single variable and constant or product of constants. It may have more than one variable. In general we can define a Linear Equations in terms of two variables say x, y and two designate constants c and m, which has a form: y = mx + c. Here the m defines the slope of the equation of line. So we can say that a linear equation is a mathematical expression with an equal sign and a linear equation. A linear expression is one which is a mathematical statement that performs operations such addition, subtraction, division and multiplication. In a linear equation the variables used are unknowns and they cannot be in one of the following forms... Know More About :- Powers and Roots
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1. In a linear equation the variable cannot have an exponent. 2. It also not found under square or any other root. 3. It cannot multiply and divide each other like x / y or y / x. If this linear equation is in 2 dimensional then it can be written as Ax + By + C = 0. Here A and B are non zero and C can be zero or not. The standard form of the equation is Ax + By =C. The slope intersect form of the linear equation can be written as y =mx + c. In case of point slope the equation has a form y -- y1 = m(x -- x1). Here (x1, y1) is any point on line. The two point form of the linear equation is y -- y1 = [ (y2 -- y1) / (x2 -- x1)] * (x - x1). Here (x1, y1) and (x2, y2) are two points on the line and x2 is not equals to x1. And the slope is given as m =(y2 -- y1) / (x2 -- x1). The parametric form of the linear equation is x =T*t + Q and y = V*t + R. Here the variable parameter is t, with a slope m that is equal to V/T with x intercept (VQ - TR) / V and the y intercept is (RT - VQ) / T. The linear equation also has an intercept form according to which it is defined as x/a + y/b =1, where a and b are non zero. A linear equation can also be written with more than two variables. The general equation is a1x1 + a2x2 + a3x3+ . . . . . . . . . . . . . . . . . . ..+ anxn = b. Here n is the total number of variables. Read More About :- Solving Exponential Equations
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