Factorisation using identities
Last updated at July 25, 2026 by Teachoo
Transcript
Ex 12.2, 1 Factorise the following expressions. (viii) š^4 + 2š^2 š^2 + š^4š^4 + 2š^2 š^2 + š^4 Using (š^š )^š=š^(š Ć š) ā“ (š^2 )^2 = š^(2 Ć 2)=š^4 = (š^2 )^2+ć2šć^2 š^2+(š^2 )^2 = (š^š )^š+š(š^šĆš^š)+(š^š )^š =(š^2 )^2+(š^2 )^2+2(š^2Ćš^2) Using (š+š)^š=š„^2+š¦^2+2š„š¦ Here, š„ = š^2 and y = š^2 = (š^š+š^š )^š