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UNIT 1A LESSON 3 OPERATIONS WITH RATIONALS & RADICALS. Rational Expressions. Addition & Subtraction of rational expressions requires a common denominator. Rational Expressions. Addition & Subtraction of rational expressions requires a common denominator. Rational Expressions.
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UNIT 1A LESSON 3 OPERATIONS WITH RATIONALS & RADICALS
Rational Expressions Addition & Subtraction of rational expressions requires a common denominator
Rational Expressions Addition & Subtraction of rational expressions requires a common denominator
Rational Expressions Addition & Subtraction of rational expressions requires a common denominator
To divide rational expressions we multiply by the reciprocal. 2 1 2 1
To divide rational expressions we multiply by the reciprocal.
The ability to simplify an expression by rationalizing it is important in problems involving limits. • Recall that the conjugate of any expression of the form is , and vice versa. • Rationalizing often involves multiplying the numerator and denominator by the conjugate of the expression that is being rationalized. RATIONALIZING NUMERATORS AND DENOMINATORS
Rationalize the denominator Rationalize the numerator
Rationalize the denominator Rationalize the numerator