Question

विस्तार करा: (7x + 8y)³

Answer 1

heya !!!!

your answer

Answer 2

विस्तार करा:(7x+8y)³

विस्तार सूत्र:

${(a+b)}^{3} = {a}^{3} + {b}^{3} + 3 {a}^{2} b + 3a {b}^{2} \\ \\ a=7x \\ \\ b=8y \\ \\ {(7x+8y)}^{3} = {(7x)}^{3} + {(8y)}^{3} + 3 {(7x)}^{2} (8y)+ 3(7x) {(8y)}^{2} \\ \\ = 343{x}^{3} + 512{y}^{3} + 1176 {x}^{2}y+ 1344x{y}^{2}$
विस्तार:
${(7x+8y)}^{3} =343{x}^{3} + 512{y}^{3} + 1176 {x}^{2}y+ 1344x{y}^{2}$