Question

Find the products by using suitable identity--

(i) (4a-5b) (16a2+2ab+25b2)

(ii) (7x+y) (4ax2-7xy+y2)

(iii) (3x4+5) (9x8-15x4+25)

(iv) (x+1/x) (x2+1/x2)

(v) (2x-3/x) (4x2+9/x2+6/1)
Please help for valid answer i will surely mark brainly

Answer 1

you have ncert book in chapter 2ex 2.5 question 9 is that identity for 1and 2 part 3 and 4part in page number46 is that identity