Ex 14.2, 1 (iv) - Chapter 14 Class 8 Factorisation
Last updated at Dec. 1, 2021 by Teachoo
Ex 14.2
Ex 14.2, 1 (i)
Ex 14.2, 1 (ii)
Ex 14.2, 1 (iii) Important
Ex 14.2, 1 (iv) Important You are here
Ex 14.2, 1 (v)
Ex 14.2, 1 (vi)
Ex 14.2, 1 (vii) Important
Ex 14.2, 1 (viii)
Ex 14.2, 2 (i)
Ex 14.2, 2 (ii) Important
Ex 14.2, 2 (iii)
Ex 14.2, 2 (iv) Important
Ex 14.2, 2 (v)
Ex 14.2, 2 (vi)
Ex 14.2, 2 (vii) Important
Ex 14.2, 2 (viii) Important
Ex 14.2, 3 (i)
Ex 14.2, 3 (ii) Important
Ex 14.2, 3 (iii)
Ex 14.2, 3 (iv) Important
Ex 14.2, 3 (v) Important
Ex 14.2, 3 (vi)
Ex 14.2, 3 (vii)
Ex 14.2, 3 (viii) Important
Ex 14.2, 3 (ix)
Ex 14.2, 4 (i)
Ex 14.2, 4 (ii) Important
Ex 14.2, 4 (iii)
Ex 14.2, 4 (iv) Important
Ex 14.2, 4 (v) Important
Ex 14.2, 5 (i)
Ex 14.2, 5 (ii) Important
Ex 14.2, 5 (iii)
Transcript
Ex 14.2, 1 Factorise the following expressions. (iv) 49𝑦^2 + 84yz + 36𝑧^2 49𝑦^2 + 84yz + 36𝑧^2 = 〖(7𝑦)〗^2+84𝑦𝑧+〖(6𝑧)〗^2 = 〖(7𝑦)〗^2+ 2×7𝑦×6𝑧+〖(6𝑧)〗^2 = 〖(7𝑦)〗^2+ 〖(6𝑧)〗^2+ 2×7𝑦×6𝑧 Using (𝑎+𝑏^2 )=𝑎^2+𝑏^2+2𝑎𝑏 Here, 𝑎 = 7y and b = 6z = 〖(𝟕𝒚+𝟔𝒛)〗^𝟐
