Example 5 - Chapter 12 Class 8 Factorisation
Last updated at April 16, 2024 by Teachoo
Factorisation using identities
Example 4
Example 5 Important You are here
Example 6
Example 8
Example 7 Important
Ex 12.2, 1 (i)
Ex 12.2, 1 (ii)
Ex 12.2, 1 (iii) Important
Ex 12.2, 1 (v)
Ex 12.2, 1 (viii)
Ex 12.2, 1 (vi)
Ex 12.2, 1 (iv) Important
Ex 12.2, 1 (vii) Important
Ex 12.2, 2 (i)
Ex 12.2, 2 (iii)
Ex 12.2, 2 (vi)
Ex 12.2, 2 (ii) Important
Ex 12.2, 2 (iv) Important
Ex 12.2, 2 (v)
Ex 12.2, 2 (vii) Important
Ex 12.2, 2 (viii) Important
Ex 12.2, 4 (i)
Ex 12.2, 4 (ii) Important
Ex 12.2, 4 (iii)
Ex 12.2, 4 (iv) Important
Ex 12.2, 4 (v) Important
Last updated at April 16, 2024 by Teachoo
Example 5 Factorise 4𝑦^2 – 12y + 9 4𝑦^2 – 12y + 9 = 〖(2𝑦)〗^2 − 12𝑦+(3)^2 = 〖(2𝑦)〗^2 − 2×2𝑦×3 +(3)^2 = 〖(2𝑦)〗^2+ (3)^2 −2×2𝑦×3 Using (𝑎−𝑏)^2 = 𝑎^2+𝑏^2−2𝑎𝑏 Here 𝑎=2𝑦, 𝑏=3 = (〖𝟐𝒚−𝟑)〗^𝟐