Question

The value of x² + 2y² + 3xy at x = 1 and y = -1 is​

Answer 1

Answer:-4

Step-by-step explanation:

x²=1²

2y²=2×-1²

3xy=3×1×-1

Then,

x²+2y²+3xy=

$1 + - 2 + - 3 = - 4$

.

Answer 2

Answer:

0

Step-by-step explanation:

(1)^2+2(-1)^2+3(1)(-1)

1+2-3

0