# Algebra

### Quadratic Equation

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Quadratic equation   What is a quadratic equation?   A quadratic equation is an equation of degree 2 with one variable and that can be written as: x² + bx + c = 0, where a≠0, a, b, c are the coefficients and x is the variable. The number of roots of a quadratic equation […]

### Equations. First degree equation

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First degree equation What is an equation? An equation in mathematics is a statement that links 2 expressions with the equal symbol.One of the basic type of equations are the first degree equations,that can be called as ‘’Linear equations”. Linear Equations with one variable A linear equation is an equation that represents a line on the […]

### Power and Roots

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Power and Roots An expression that represents repeated multiplication of the same factor is called a power. So, when we want to multiply a number by itself repeatedly we use powers. $displaystyle {{a}^{n}}$ tells  you  to multiply  a  by itself, exactly n-times. The exponent corresponds to the number of times the base is used as […]

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