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Example 13 (i) - Chapter 2 Class 9 Polynomials
Last updated at Dec. 13, 2024 by Teachoo
Chapter 2 Class 9 Polynomials
Concept wise
- Definition
- Degree & Coefficient of a polynomial
- Value of a polynomial at a given point
- Verifying Zeroes of a polynomial
- Finding Zeroes of a polynomial
- Remainder Theoram
- Check if factor
- Factorisation by middle term
- Factorisation by factor formula
- Factorizing cubic equation
-
Identity I - IV
- Identity V
- Identity VI & VII
- Identity VIII
Transcript
Example 18 Factorize: 49a2 + 70ab + 25b2 49a2 + 70ab + 25b2 = 72 a2 + 70ab + 52 b2 = (7a)2 + 70ab + (5b)2 = (7a)2 + (5b)2 + 2(7a) (5b) Using Identity (x + y)2 = x2 + y2 + 2xy where x = 7a and y = 5b = (7a + 5b)2 = (7a + 5b) (7a + 5b)
