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Example 17 (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 22 Write the following cubes in the expanded form: (3a + 4b)3 (3a + 4b)3 Using (x + y)3 = x3 + y3 + 3xy(x + y) Where x = 3a & y = 4b = (3a)3 + (4b)3 + 3(3a)(4b)(3a + 4b) = 27a3 + 64b3 + 3(3a)(4b)(3a) + 3(3a)(4b) (4b) = 27a3 + 64b3 + 108a2b + 144ab2
