Question

if 5 x minus 2 Y equal to 7 and x y equals to 2 find the value of 5 x + 2 y whole square​

Answer 1

Answer:

Step-by-step explanation:

(5x+2y)2 = ( 5x - 2y)2 + 4× 5x × 2y)

(5x+2y)2 = 49 + 40 x 2 = 129

Answer 2

5x-2y=7

xy=2

5x+2y whole square=???

xy=2

x=2/y

5x-2y=7

5(2/y)-2y=7

(5y+2)-2y=7

3y+2=7

3y=7-2

3y=5

y=5/3

xy=2

x=2/y

x=2/(5/3)

x=6/5

5x+2y whole square=5(6/5)+2(5/3)

=6+10/3

=28/3

5x+2y whole square= 28/3 whole square