Question

x+y=4 x-y=3 find16xy(x2+y2) =?​

Answer 1

Step-by-step explanation:

x+y=4

x-y=3

By elimination

x=7/2 , y=1/2

16xy(x²+y²)= 16(7/2*1/2)((7/2)²+(1/2)²)

= 16 * 7/4 ( 49/4 + 1/4)

= 28 ( 50/4)

= 350