Question

18. The value of 4x2 +9y2 - 12xy, when x = 2 and y = 1​

Answer 1

Answer:

10

Step-by-step explanation:

4×2×2+9×1×2-12×2×1

16+18-24

34-24

10

Answer 2

Step-by-step:

Put value of x=2 and y=1

= 4x2x2 + 9x1x2 - 12x2x1

= 16 + 18 - 24

= 34 -24

= 10

10 is the answer.

Hope it helps!!