Ex 8.4, 1 (v) - Chapter 8 Class 8 Algebraic Expressions and Identities
Last updated at April 16, 2024 by Teachoo
Multiplication of Polynoimals by Polynomials
Multiplying Binomial by a Binomial
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Chapter 8 Class 8 Algebraic Expressions and Identities
Concept wise
- Basic Definitions
- Addition and Subtraction of Algebraic Expressions
- Multiplication of Monomials
- Multiplication of Monomials by Binomials and Trinomials
-
Multiplication of Polynoimals by Polynomials
- Algebra Identities - Identity I
- Algebra Identities - Identity II
- Algebra Identities - Identity III
- Algebra Identities - Identity IV
Transcript
Ex 8.4, 1 Multiply the binomials. (v) (2𝑝𝑞 + 3𝑞^2 ) and (3𝑝𝑞 – 2𝑞^2 ) (2𝑝𝑞 + 3𝑞^2 )(3𝑝𝑞 – 2𝑞^2 ) = 2𝑝𝑞(3𝑝𝑞−2𝑞^2 )+3𝑞^2 (3𝑝𝑞−2𝑞^2 ) = (𝟐𝒑𝒒 × 𝟑𝒑𝒒)−(𝟐𝒑𝒒 × 𝟐𝒒^𝟐 )+(𝟑𝒒^𝟐 × 𝟑𝒑𝒒)−(𝟑𝒒^𝟐 × 𝟐𝒒^𝟐 ) = 6𝑝^2 𝑞^2−4𝑝𝑞^3+9𝑝𝑞^3−6𝑞^4 = 𝟔𝒑^𝟐 𝒒^𝟐+𝟓𝒑𝒒^𝟑−𝟔𝒒^𝟒
