Ex 8.4, 1 (i) - Chapter 8 Class 8 Algebraic Expressions and Identities
Last updated at Dec. 16, 2024 by Teachoo
Ex 8.4
Ex 8.4, 1 (i)
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Chapter 8 Class 8 Algebraic Expressions and Identities
Serial order wise
Transcript
Ex 8.4, 1 Multiply the binomials. (i) (2𝑥 + 5) and (4𝑥 – 3) (2𝑥+5) (4𝑥−3) = 2𝑥(4𝑥−3)+5(4𝑥−3) = (𝟐𝒙 × 𝟒𝒙)−(𝟐𝒙 × 𝟑)+(𝟓 × 𝟒𝒙)−(𝟓 × 𝟑) = 8𝑥^2−6𝑥+20𝑥−15 = 𝟖𝒙^𝟐+𝟏𝟒𝒙−𝟏𝟓
