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Warm Up #13. Warm Up #13:. 2x 2 + 4x - 6. 4x + 1. x 2 – 6x +36. Complex Rational Expressions. Fractions inside of fractions are a NO - NO And must be simplified. Steps. Find the LCD of the numerator and denominator
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Warm Up #13: 2x2 + 4x - 6 4x + 1 x2 – 6x +36
Complex Rational Expressions Fractions inside of fractions are a NO - NO And must be simplified.
Steps • Find the LCD of the numerator and denominator • Multiply the complex rational expression by the LCD/LCD (so its equivalent to multiplying by 1) • Simplify (factor and cross out common factors)
Complex Rational Expressions Example 1:
Short Cut • If there are 2 terms or more on either the numerator or denominator you must multiply by the LCD/LCD • However, if there is only 1 term on the numerator and 1 term on the denominator then you can divide fractions (which means multiply by the reciprocal)