Question

pleasee help to solve

Answer 1

Hello friend  Here is your answer ➡️➡️➡️ Given 3a^2 -4b^2 -2/3 c^2   Where a=2 b= -1 and c= -2  So, your answer is 56/3

Answer 2

$3a {}^{2} - 4b {}^{2} - 2 \div 3c {}^{2}$
a =2 , b = -1 , c = -2
3×4 - 4×(-1) - 2/3×(-4)
12 - 4 + 8/3
8 + 8/3
24 + 8
---------
3
32/3