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Ex 9.4, 1 (i) - Chapter 9 Class 8 Algebraic Expressions and Identities
Last updated at March 23, 2023 by Teachoo
Ex 9.4
Ex 9.4, 1 (i)
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Ex 9.4, 1 (ii)
Ex 9.4, 1 (iii) Important
Ex 9.4, 1 (iv)
Ex 9.4, 1 (v) Important
Ex 9.4, 1 (vi) Important
Ex 9.4, 2 (i)
Ex 9.4, 2 (ii) Important
Ex 9.4, 2 (iii)
Ex 9.4, 2 (iv) Important
Ex 9.4, 3 (i)
Ex 9.4, 3 (ii)
Ex 9.4, 3 (iii) Important
Ex 9.4, 3 (iv)
Ex 9.4, 3 (v) Important
Ex 9.4, 3 (vi)
Ex 9.4, 3 (vii) Important
Ex 9.4, 3 (viii)
Transcript
Ex 9.4, 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
