The value of 2x + 2y, for x = 7 and y = 3, is 50.
So 2x + 2y = 50 when x = 7 and y = 3
2x + 2y = 50 Since x = 7, plug in 7 for "x". Since y = 3, plug in 3 for "y".
2(7) + 2(3) = 50
14 + 6 = 50
20 = 50
This is False because when x = 7 and y = 3, the value of 2x + 2y is 20, not 50.
The value of x²y², for x = 3 and y = 3, is 36.
So x²y² = 36 when x = 3 and y = 3
x²y² = 36 Plug in 3 for "x", and plug in 3 for "y"
(3)² · (3)² = 36
9 · 9 = 36
81 = 36
This is False because when x = 3 and y = 3, the value of x²y² is 81, not 36.