Question

Find the product:
(2x/5-3y/7) (9y^2/49+4x^2/25+6xy/35)

Answer 1

Answer:-

(2x)(9y^2)/5*49+(2x)(4x^2)/25*5+(6xy)(2x)/5*35-(3y)(9y^2)/49*7-(3y)(4x^2)/25*7-(3y)(6xy)/35*7=0

18xy^2/5*49+8x^3/25*5+12x^2y/5*35-27y^3/49*7-12x^2y/25*7-18xy^2/35*7=0

18xy^2/245-18xy^2/245+12x^2y/175-12x^2y/175+8x^3/125-27y^3/343=0

8x^3/125-27y^3/343=0