Question

the sum of square and cube of ( 1+3/7) is equal to _​

Answer 1

Answer:

$4.956(approx.)$

Step-by-step explanation:

use the following identities,

${(x + y)}^{2} = {x}^{2} + {y}^{2} + 2xy$

and

${(x + y)}^{3} = {x}^{3} + {y}^{3} + 3xy(x + y)$