Question

Find the value of the expression a² + b² + c² - abc for a = 2, b = 3, c = 4​

Answer 1

Answer:

after putting all the values and solving them

2²+3²+4²-2*3*4

4+9+16- 24

29-24

=5

Answer 2

Answer:

a²+b²+c²

a=2

b=3

c=4

2²+3²+4²

4+9+16

= 29