factorise-4x-4-81- Tinku Tara June 4, 2023 Algebra 0 Comments FacebookTweetPin Question Number 191430 by TechnicalDev last updated on 24/Apr/23 factorise4x4+81 Answered by som(math1967) last updated on 24/Apr/23 4x4+81=(2x2)2+(9)2=(2x2+9)2−2.2x2.9=(2x2+9)2−(6x)2=(2x2+9+6x)(2x2+9−6x)=(2x2+6x+9)(2x2−6x+9) Answered by manxsol last updated on 24/Apr/23 (2x2)2+(9)2+2(2x2)(9)−(6x)2(2x2+9)2−(6x)2factreal(2x2−6x+9)(2x2+6x+9)Δ=36−4(2)(9)=−36factcomplex6+6i4=3+3i2(x−3+3i2)(x−3−3i2)(x−−3+3i2)(x−−3−3i2) Answered by namphamduc last updated on 24/Apr/23 4x4+81=(2x2)2+2.2x2.9+81−36x2=(2x2+9)2−(6x)2=(2x2−6x+9)(2x2+6x+9) Terms of Service Privacy Policy Contact: info@tinkutara.com FacebookTweetPin Post navigation Previous Previous post: sin-x-cos-x-1-sin-2x-3-dx-Next Next post: decompose-tbe-fraction-F-x-x-2-x-2-1-3- Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Save my name, email, and website in this browser for the next time I comment.