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- 16. What are you feeling right now?
- 18. Review time!
- 19. MULTIPLYING & DIVIDING RATIONAL ALGEBRAIC EXPRESSIONS MR. Jerremy Louis D. Mangalindan, LPT. Mathematics Teacher
- 20. OBJECTIVES: β’ Students will be able to multiply and divide rational numbers β’ Students will develop strategies to identify and correct errors in calculations, ensuring accurate and simplified results.
- 21. HOW TO MULTIPLY RATIONAL EXPRESSIONS?
- 22. β’ Operations like multiplication and division are very common in fractions. β’ These operations can also be performed to rational expressions.
- 23. β’ To obtain the product of two or more rational expressions, we get the product of the numerators as well as the product of the denominators of the given expressions.
- 24. β’ Rational expressions are multiplied in a similar manner as multiplying rational numbers. β’ The rational expressions must be factored first before multiplying them so that common factors can be cancelled.
- 26. Multiply & simplify: EXAMPLE 1. πβπβπβ π β π β π β πβ π β π βπ β π πβπβπβ π β π β π β π β πβ π ΒΏ π πππ ππ
- 27. Multiply & simplify: EXAMPLE 2. π β(π βπ)(π βπ)βπβπ (π βπ)βπβ π β π β π (π βπ) ΒΏ π π π
- 28. HOW TO DIVIDE RATIONAL EXPRESSIONS?
- 29. β’ In dividing rational expressions, we multiply the numerator by the reciprocal of the denominator.
- 30. Divide & simplify: EXAMPLE 1. ΒΏ ππ +π π β π π π +π π+π β π π +π π β π ΒΏ ( π+π) ( π βπ)βπ( π+π) ( π+π)( π +π) β(π β π) ΒΏ π ( π+π ) π +π ππ π π +ππ π+π
- 31. Divide & simplify: EXAMPLE 2. ΒΏ ππ βπ π+π π π βππ β π ( π βπ) ΒΏ ( π βπ) ( π βπ)βπ π( π βπ)β( π βπ) ΒΏ π π
- 32. REVIEW:
- 34. Think-Pair-share
- 35. Multiply & simplify: 1. Divide & simplify: 2.
- 36. Multiply & simplify: EXAMPLE 3. ΒΏ ππ (πβππ) β( π+π π) (πβπ π) ( πβ ππ)( πβππ) βππ ΒΏ (π+π π) π ΒΏ( π+π π)
- 38. Homework
- 39. THANK YOU