Question

4x2 + 12 xy +9 y2 ; x=-2 and y= 2

Answer 1

$4 {x}^{2} + 12xy + 9 {y}^{2} \\ \\ for \: x = - 2 \: and \: y = 2 \\ \\ 4 ({ - 2})^{2} + 12 \times - 2 \times 2 + 9 ({2})^{2} \\ = 16 - 48 + 36 = 4$

Answer 2

hi mate it will we when we put value of x and y in the equation

4 x (-2)^2 + 12 x 2 x(-2) + 9 x 2^2

16 - 48 + 36
4
I hope this helps you