Answer Q13 i,ii Q13 Factorise using identitiesi 25x2+30x+9ii 81a2-4b2 - Maths - Factorisation

Question

Answer Q13 i,ii

Q 13   F a c t o r i s e   u sin g   i d e n t i t i
e s i   25 x 2 + 30 x + 9 i i   81 a 2 - 4 b 2

Ankita Agarwal · Accepted Answer

Dear Student,
i 25x2+30x+9=25x2+15x+15x+9                         =5x5x+3+35x+3                         =5x+3 5x+3ii81a2-4b2=9a2-2b2                   =9a-2b9a+2b      a2-b2=a+b-b  
Regards

Answer Q13 i,ii Q 13 . F a c t o r i s e u sin g i d e n t i t i e s i 25 x 2 + 30 x + 9 i i 81 a 2 - 4 b 2

Answer Q13 i,ii

$Q 13 . F a c t o r i s e u \sin g i d e n t i t i e s (i) 25 x^{2} + 30 x + 9 (i i) 81 a^{2} - 4 b^{2}$