please answer this Q.11.(i) 9 x 4 - x 2 - 12 x - 36 Share with your friends Share 1 Shruti Tyagi answered this Dear student, We have,9x4-x2-12x-36=9x4-x2+12x+36=9x4-x2+2×x×6+62=9x4-x+62 --[using (a+b)2=a2+b2+2ab]=3x22-x+62 using a2-b2=(a+b)(a-b)=3x2+x+63x2-x-6 Regards 0 View Full Answer Rajkumar Yadav Yadav answered this Your answers 1 Arti Sharma answered this thanku 0 Rajkumar Yadav Yadav answered this Answers 1