Math 1021 Section 1.1

# Math 1021 Section 1.1 - polynomial expressions in which the...

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2 6 2 3 3 x x x - = - + + Math 1021 Section 1.1 Linear and Rational Equations An equation is a statement in which two expressions are equal. To solve an equation means to find all values of the variable that satisfy the equation (make it a true statement). To solve an equation you use properties (add, subtract, multiply or divide both sides by the same non-zero number) to get the variable on one side of the equation. A linear equation is an equation of degree 1 (highest power of the exponent is 1) and is of the form ax + b = c, where a, b, and c are real numbers and a 0. A rational equation is an equation which contains the quotient of two

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Unformatted text preview: polynomial expressions in which the denominator has a variable (non-constant term). ******When solving a rational equation, you MUST check your answer(s) to make sure the answer you get does not make the denominator zero (which is undefined). You must exclude any of these values. An extraneous solution is a solution that does not satisfy the original equation. Many rational equations have extraneous solutions so it is very important for you to check your answers to these equations. Solve each of the following equations algebraically. Ex. 1: Ex. 2: Ex. 3:...
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Math 1021 Section 1.1 - polynomial expressions in which the...

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